(no commit message)
[jalview.git] / forester / java / src / org / forester / application / surfacing.java
index 0c548af..2b5c7c4 100644 (file)
@@ -34,17 +34,14 @@ import java.io.Writer;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.HashMap;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
-import java.util.Map.Entry;
 import java.util.Set;
 import java.util.SortedMap;
 import java.util.SortedSet;
 import java.util.TreeMap;
 import java.util.TreeSet;
 
-import org.forester.evoinference.matrix.character.CharacterStateMatrix.Format;
 import org.forester.go.GoId;
 import org.forester.go.GoNameSpace;
 import org.forester.go.GoTerm;
@@ -54,13 +51,7 @@ import org.forester.go.PfamToGoMapping;
 import org.forester.go.PfamToGoParser;
 import org.forester.io.parsers.HmmscanPerDomainTableParser;
 import org.forester.io.parsers.HmmscanPerDomainTableParser.INDIVIDUAL_SCORE_CUTOFF;
-import org.forester.io.parsers.phyloxml.PhyloXmlUtil;
-import org.forester.io.parsers.util.ParserUtils;
 import org.forester.phylogeny.Phylogeny;
-import org.forester.phylogeny.PhylogenyMethods;
-import org.forester.phylogeny.PhylogenyNode;
-import org.forester.phylogeny.factories.ParserBasedPhylogenyFactory;
-import org.forester.phylogeny.iterators.PhylogenyNodeIterator;
 import org.forester.protein.BinaryDomainCombination;
 import org.forester.protein.Domain;
 import org.forester.protein.Protein;
@@ -70,12 +61,11 @@ import org.forester.surfacing.BasicDomainSimilarityCalculator;
 import org.forester.surfacing.BasicGenomeWideCombinableDomains;
 import org.forester.surfacing.CombinationsBasedPairwiseDomainSimilarityCalculator;
 import org.forester.surfacing.DomainCountsBasedPairwiseSimilarityCalculator;
-import org.forester.surfacing.DomainCountsDifferenceUtil;
 import org.forester.surfacing.DomainLengthsTable;
 import org.forester.surfacing.DomainParsimonyCalculator;
 import org.forester.surfacing.DomainSimilarity;
 import org.forester.surfacing.DomainSimilarity.DomainSimilarityScoring;
-import org.forester.surfacing.DomainSimilarity.DomainSimilaritySortField;
+import org.forester.surfacing.DomainSimilarity.PRINT_OPTION;
 import org.forester.surfacing.DomainSimilarityCalculator;
 import org.forester.surfacing.DomainSimilarityCalculator.Detailedness;
 import org.forester.surfacing.GenomeWideCombinableDomains;
@@ -83,8 +73,6 @@ import org.forester.surfacing.GenomeWideCombinableDomains.GenomeWideCombinableDo
 import org.forester.surfacing.MappingResults;
 import org.forester.surfacing.PairwiseDomainSimilarityCalculator;
 import org.forester.surfacing.PairwiseGenomeComparator;
-import org.forester.surfacing.PrintableDomainSimilarity;
-import org.forester.surfacing.PrintableDomainSimilarity.PRINT_OPTION;
 import org.forester.surfacing.ProteinCountsBasedPairwiseDomainSimilarityCalculator;
 import org.forester.surfacing.SurfacingUtil;
 import org.forester.util.BasicDescriptiveStatistics;
@@ -97,455 +85,191 @@ import org.forester.util.ForesterUtil;
 
 public class surfacing {
 
-    private static final int                                  MINIMAL_NUMBER_OF_SIMILARITIES_FOR_SPLITTING                                  = 1000;
-    public final static String                                DOMAIN_COMBINITONS_OUTPUT_OPTION_FOR_GRAPH_ANALYSIS                           = "graph_analysis_out";
-    public final static String                                DOMAIN_COMBINITONS_OUTPUTFILE_SUFFIX_FOR_GRAPH_ANALYSIS                       = "_dc.dot";
-    public final static String                                PARSIMONY_OUTPUT_FITCH_PRESENT_BC_OUTPUTFILE_SUFFIX_FOR_GRAPH_ANALYSIS        = "_fitch_present_dc.dot";
-    public final static String                                DOMAIN_COMBINITON_COUNTS_OUTPUTFILE_SUFFIX                                    = ".dcc";
+    private static final int                                        MINIMAL_NUMBER_OF_SIMILARITIES_FOR_SPLITTING                                  = 1000;
+    public final static String                                      DOMAIN_COMBINITONS_OUTPUT_OPTION_FOR_GRAPH_ANALYSIS                           = "graph_analysis_out";
+    public final static String                                      DOMAIN_COMBINITONS_COUNTS_OUTPUT_OPTION                                       = "dcc";
+    public final static String                                      DOMAIN_COMBINITONS_OUTPUTFILE_SUFFIX_FOR_GRAPH_ANALYSIS                       = "_dc.dot";
+    public final static String                                      PARSIMONY_OUTPUT_FITCH_PRESENT_BC_OUTPUTFILE_SUFFIX_FOR_GRAPH_ANALYSIS        = "_fitch_present_dc.dot";
+    public final static String                                      DOMAIN_COMBINITON_COUNTS_OUTPUTFILE_SUFFIX                                    = ".dcc";
     // gain/loss:
-    public final static String                                PARSIMONY_OUTPUT_GL_SUFFIX_DOLLO_DOMAINS                                      = "_dollo_gl_d";
-    public final static String                                PARSIMONY_OUTPUT_GL_SUFFIX_DOLLO_BINARY_COMBINATIONS                          = "_dollo_gl_dc";
-    public final static String                                PARSIMONY_OUTPUT_GL_SUFFIX_FITCH_DOMAINS                                      = "_fitch_gl_d";
-    public final static String                                PARSIMONY_OUTPUT_GL_SUFFIX_FITCH_BINARY_COMBINATIONS                          = "_fitch_gl_dc";
+    public final static String                                      PARSIMONY_OUTPUT_GL_SUFFIX_DOLLO_DOMAINS                                      = "_dollo_gl_d";
+    public final static String                                      PARSIMONY_OUTPUT_GL_SUFFIX_DOLLO_BINARY_COMBINATIONS                          = "_dollo_gl_dc";
+    public final static String                                      PARSIMONY_OUTPUT_GL_SUFFIX_FITCH_DOMAINS                                      = "_fitch_gl_d";
+    public final static String                                      PARSIMONY_OUTPUT_GL_SUFFIX_FITCH_BINARY_COMBINATIONS                          = "_fitch_gl_dc";
     // gain/loss counts:
-    public final static String                                PARSIMONY_OUTPUT_GL_COUNTS_SUFFIX_DOLLO_DOMAINS                               = "_dollo_glc_d";
-    public final static String                                PARSIMONY_OUTPUT_GL_COUNTS_SUFFIX_DOLLO_BINARY_COMBINATIONS                   = "_dollo_glc_dc";
-    public final static String                                PARSIMONY_OUTPUT_GL_COUNTS_SUFFIX_FITCH_DOMAINS                               = "_fitch_glc_d";
-    public final static String                                PARSIMONY_OUTPUT_GL_COUNTS_SUFFIX_FITCH_BINARY_COMBINATIONS                   = "_fitch_glc_dc";
+    public final static String                                      PARSIMONY_OUTPUT_GL_COUNTS_SUFFIX_DOLLO_DOMAINS                               = "_dollo_glc_d";
+    public final static String                                      PARSIMONY_OUTPUT_GL_COUNTS_SUFFIX_DOLLO_BINARY_COMBINATIONS                   = "_dollo_glc_dc";
+    public final static String                                      PARSIMONY_OUTPUT_GL_COUNTS_SUFFIX_FITCH_DOMAINS                               = "_fitch_glc_d";
+    public final static String                                      PARSIMONY_OUTPUT_GL_COUNTS_SUFFIX_FITCH_BINARY_COMBINATIONS                   = "_fitch_glc_dc";
     // tables:
-    public final static String                                PARSIMONY_OUTPUT_FITCH_GAINS_BC                                               = "_fitch_gains_dc";
-    public final static String                                PARSIMONY_OUTPUT_FITCH_GAINS_HTML_BC                                          = "_fitch_gains_dc.html";
-    public final static String                                PARSIMONY_OUTPUT_FITCH_LOSSES_BC                                              = "_fitch_losses_dc";
-    public final static String                                PARSIMONY_OUTPUT_FITCH_LOSSES_HTML_BC                                         = "_fitch_losses_dc.html";
-    public final static String                                PARSIMONY_OUTPUT_FITCH_PRESENT_BC                                             = "_fitch_present_dc";
-    public final static String                                PARSIMONY_OUTPUT_FITCH_PRESENT_HTML_BC                                        = "_fitch_present_dc.html";
-    public final static String                                PARSIMONY_OUTPUT_DOLLO_GAINS_D                                                = "_dollo_gains_d";
-    public final static String                                PARSIMONY_OUTPUT_DOLLO_GAINS_HTML_D                                           = "_dollo_gains_d.html";
-    public final static String                                PARSIMONY_OUTPUT_DOLLO_LOSSES_D                                               = "_dollo_losses_d";
-    public final static String                                PARSIMONY_OUTPUT_DOLLO_LOSSES_HTML_D                                          = "_dollo_losses_d.html";
-    public final static String                                PARSIMONY_OUTPUT_DOLLO_PRESENT_D                                              = "_dollo_present_d";
-    public final static String                                PARSIMONY_OUTPUT_DOLLO_PRESENT_HTML_D                                         = "_dollo_present_d.html";
-    public final static String                                DOMAINS_PRESENT_NEXUS                                                         = "_dom.nex";
-    public final static String                                BDC_PRESENT_NEXUS                                                             = "_dc.nex";
+    public final static String                                      PARSIMONY_OUTPUT_FITCH_GAINS_BC                                               = "_fitch_gains_dc";
+    public final static String                                      PARSIMONY_OUTPUT_FITCH_GAINS_HTML_BC                                          = "_fitch_gains_dc.html";
+    public final static String                                      PARSIMONY_OUTPUT_FITCH_LOSSES_BC                                              = "_fitch_losses_dc";
+    public final static String                                      PARSIMONY_OUTPUT_FITCH_LOSSES_HTML_BC                                         = "_fitch_losses_dc.html";
+    public final static String                                      PARSIMONY_OUTPUT_FITCH_PRESENT_BC                                             = "_fitch_present_dc";
+    public final static String                                      PARSIMONY_OUTPUT_FITCH_PRESENT_HTML_BC                                        = "_fitch_present_dc.html";
+    public final static String                                      PARSIMONY_OUTPUT_DOLLO_GAINS_D                                                = "_dollo_gains_d";
+    public final static String                                      PARSIMONY_OUTPUT_DOLLO_GAINS_HTML_D                                           = "_dollo_gains_d.html";
+    public final static String                                      PARSIMONY_OUTPUT_DOLLO_LOSSES_D                                               = "_dollo_losses_d";
+    public final static String                                      PARSIMONY_OUTPUT_DOLLO_LOSSES_HTML_D                                          = "_dollo_losses_d.html";
+    public final static String                                      PARSIMONY_OUTPUT_DOLLO_PRESENT_D                                              = "_dollo_present_d";
+    public final static String                                      PARSIMONY_OUTPUT_DOLLO_PRESENT_HTML_D                                         = "_dollo_present_d.html";
+    public final static String                                      DOMAINS_PRESENT_NEXUS                                                         = "_dom.nex";
+    public final static String                                      BDC_PRESENT_NEXUS                                                             = "_dc.nex";
     // ---
-    public final static String                                PRG_NAME                                                                      = "surfacing";
-    public static final String                                DOMAINS_PARSIMONY_TREE_OUTPUT_SUFFIX_DOLLO                                    = "_d_dollo"
-                                                                                                                                                    + ForesterConstants.PHYLO_XML_SUFFIX;
-    public static final String                                DOMAINS_PARSIMONY_TREE_OUTPUT_SUFFIX_FITCH                                    = "_d_fitch"
-                                                                                                                                                    + ForesterConstants.PHYLO_XML_SUFFIX;
-    public static final String                                BINARY_DOMAIN_COMBINATIONS_PARSIMONY_TREE_OUTPUT_SUFFIX_DOLLO                 = "_dc_dollo"
-                                                                                                                                                    + ForesterConstants.PHYLO_XML_SUFFIX;
-    public static final String                                BINARY_DOMAIN_COMBINATIONS_PARSIMONY_TREE_OUTPUT_SUFFIX_FITCH                 = "_dc_fitch"
-                                                                                                                                                    + ForesterConstants.PHYLO_XML_SUFFIX;
-    public static final String                                NEXUS_EXTERNAL_DOMAINS                                                        = "_dom.nex";
-    public static final String                                NEXUS_EXTERNAL_DOMAIN_COMBINATIONS                                            = "_dc.nex";
-    public static final String                                NEXUS_SECONDARY_FEATURES                                                      = "_secondary_features.nex";
-    public static final String                                PARSIMONY_OUTPUT_GL_SUFFIX_DOLLO_SECONDARY_FEATURES                           = "_dollo_gl_secondary_features";
-    public static final String                                PARSIMONY_OUTPUT_GL_COUNTS_SUFFIX_DOLLO_SECONDARY_FEATURES                    = "_dollo_glc_secondary_features";
-    public static final String                                PARSIMONY_OUTPUT_DOLLO_GAINS_SECONDARY_FEATURES                               = "_dollo_gains_secondary_features";
-    public static final String                                PARSIMONY_OUTPUT_DOLLO_LOSSES_SECONDARY_FEATURES                              = "_dollo_losses_secondary_features";
-    public static final String                                PARSIMONY_OUTPUT_DOLLO_PRESENT_SECONDARY_FEATURES                             = "_dollo_present_secondary_features";
-    public static final String                                SECONDARY_FEATURES_PARSIMONY_TREE_OUTPUT_SUFFIX_DOLLO                         = "_secondary_features_dollo"
-                                                                                                                                                    + ForesterConstants.PHYLO_XML_SUFFIX;
-    public static final String                                PARSIMONY_OUTPUT_DOLLO_ALL_GOID_D_ALL_NAMESPACES                              = "_dollo_goid_d";
-    public static final String                                PARSIMONY_OUTPUT_FITCH_ALL_GOID_BC_ALL_NAMESPACES                             = "_fitch_goid_dc";
-    final static private String                               HELP_OPTION_1                                                                 = "help";
-    final static private String                               HELP_OPTION_2                                                                 = "h";
-    final static private String                               OUTPUT_DIR_OPTION                                                             = "out_dir";
-    final static private String                               SCORING_OPTION                                                                = "scoring";
-    private static final DomainSimilarityScoring              SCORING_DEFAULT                                                               = DomainSimilarity.DomainSimilarityScoring.COMBINATIONS;
-    final static private String                               SCORING_DOMAIN_COUNT_BASED                                                    = "domains";
-    final static private String                               SCORING_PROTEIN_COUNT_BASED                                                   = "proteins";
-    final static private String                               SCORING_COMBINATION_BASED                                                     = "combinations";
-    final static private String                               DETAILEDNESS_OPTION                                                           = "detail";
-    private final static Detailedness                         DETAILEDNESS_DEFAULT                                                          = DomainSimilarityCalculator.Detailedness.PUNCTILIOUS;
-    final static private String                               SPECIES_MATRIX_OPTION                                                         = "smatrix";
-    final static private String                               DETAILEDNESS_BASIC                                                            = "basic";
-    final static private String                               DETAILEDNESS_LIST_IDS                                                         = "list_ids";
-    final static private String                               DETAILEDNESS_PUNCTILIOUS                                                      = "punctilious";
-    final static private String                               DOMAIN_SIMILARITY_SORT_OPTION                                                 = "sort";
-    private static final DomainSimilaritySortField            DOMAIN_SORT_FILD_DEFAULT                                                      = DomainSimilarity.DomainSimilaritySortField.DOMAIN_ID;
-    final static private String                               DOMAIN_SIMILARITY_SORT_MIN                                                    = "min";
-    final static private String                               DOMAIN_SIMILARITY_SORT_MAX                                                    = "max";
-    final static private String                               DOMAIN_SIMILARITY_SORT_SD                                                     = "sd";
-    final static private String                               DOMAIN_SIMILARITY_SORT_MEAN                                                   = "mean";
-    final static private String                               DOMAIN_SIMILARITY_SORT_DIFF                                                   = "diff";
-    final static private String                               DOMAIN_SIMILARITY_SORT_COUNTS_DIFF                                            = "count_diff";
-    final static private String                               DOMAIN_SIMILARITY_SORT_ABS_COUNTS_DIFF                                        = "abs_count_diff";
-    final static private String                               DOMAIN_SIMILARITY_SORT_SPECIES_COUNT                                          = "species";
-    final static private String                               DOMAIN_SIMILARITY_SORT_ALPHA                                                  = "alpha";
-    final static private String                               DOMAIN_SIMILARITY_SORT_BY_SPECIES_COUNT_FIRST_OPTION                          = "species_first";
-    final static private String                               DOMAIN_COUNT_SORT_OPTION                                                      = "dc_sort";
-    private static final GenomeWideCombinableDomainsSortOrder DOMAINS_SORT_ORDER_DEFAULT                                                    = GenomeWideCombinableDomains.GenomeWideCombinableDomainsSortOrder.ALPHABETICAL_KEY_ID;
-    final static private String                               DOMAIN_COUNT_SORT_ALPHA                                                       = "alpha";
-    final static private String                               DOMAIN_COUNT_SORT_KEY_DOMAIN_COUNT                                            = "dom";
-    final static private String                               DOMAIN_COUNT_SORT_KEY_DOMAIN_PROTEINS_COUNT                                   = "prot";
-    final static private String                               DOMAIN_COUNT_SORT_COMBINATIONS_COUNT                                          = "comb";
-    final static private String                               CUTOFF_SCORE_FILE_OPTION                                                      = "cos";
-    final static private String                               NOT_IGNORE_DUFS_OPTION                                                        = "dufs";
-    final static private String                               MAX_E_VALUE_OPTION                                                            = "e";
-    final static private String                               MAX_ALLOWED_OVERLAP_OPTION                                                    = "mo";
-    final static private String                               NO_ENGULFING_OVERLAP_OPTION                                                   = "no_eo";
-    final static private String                               IGNORE_COMBINATION_WITH_SAME_OPTION                                           = "ignore_self_comb";
-    final static private String                               PERFORM_DC_REGAIN_PROTEINS_STATS_OPTION                                       = "dc_regain_stats";
-    final static private String                               DA_ANALYSIS_OPTION                                                            = "DA_analyis";
-    final static private String                               USE_LAST_IN_FITCH_OPTION                                                      = "last";
-    final static private String                               PAIRWISE_DOMAIN_COMPARISONS_PREFIX                                            = "pwc_";
-    final static private String                               PAIRWISE_DOMAIN_COMPARISONS_OPTION                                            = "pwc";
-    final static private String                               OUTPUT_FILE_OPTION                                                            = "o";
-    final static private String                               PFAM_TO_GO_FILE_USE_OPTION                                                    = "p2g";
-    final static private String                               GO_OBO_FILE_USE_OPTION                                                        = "obo";
-    final static private String                               GO_NAMESPACE_LIMIT_OPTION                                                     = "go_namespace";
-    final static private String                               GO_NAMESPACE_LIMIT_OPTION_MOLECULAR_FUNCTION                                  = "molecular_function";
-    final static private String                               GO_NAMESPACE_LIMIT_OPTION_BIOLOGICAL_PROCESS                                  = "biological_process";
-    final static private String                               GO_NAMESPACE_LIMIT_OPTION_CELLULAR_COMPONENT                                  = "cellular_component";
-    final static private String                               SECONDARY_FEATURES_PARSIMONY_MAP_FILE                                         = "secondary";
-    final static private String                               DOMAIN_SIMILARITY_PRINT_OPTION_SIMPLE_TAB_DELIMITED                           = "simple_tab";
-    final static private String                               DOMAIN_SIMILARITY_PRINT_OPTION_SIMPLE_HTML                                    = "simple_html";
-    final static private String                               DOMAIN_SIMILARITY_PRINT_OPTION_DETAILED_HTML                                  = "detailed_html";
-    final static private String                               DOMAIN_SIMILARITY_PRINT_OPTION                                                = "ds_output";
-    private static final PRINT_OPTION                         DOMAIN_SIMILARITY_PRINT_OPTION_DEFAULT                                        = PrintableDomainSimilarity.PRINT_OPTION.HTML;
-    final static private String                               IGNORE_DOMAINS_WITHOUT_COMBINATIONS_IN_ALL_SPECIES_OPTION                     = "ignore_singlet_domains";
-    final static private String                               IGNORE_VIRAL_IDS                                                              = "ignore_viral_ids";
-    final static private boolean                              IGNORE_DOMAINS_WITHOUT_COMBINATIONS_IN_ALL_SPECIES_DEFAULT                    = false;
-    final static private String                               IGNORE_DOMAINS_SPECIFIC_TO_ONE_SPECIES_OPTION                                 = "ignore_species_specific_domains";
-    final static private boolean                              IGNORE_DOMAINS_SPECIFIC_TO_ONE_SPECIES_OPTION_DEFAULT                         = false;
-    final static private String                               MATRIX_MEAN_SCORE_BASED_GENOME_DISTANCE_SUFFIX                                = "_mean_score.pwd";
-    final static private String                               MATRIX_SHARED_DOMAINS_BASED_GENOME_DISTANCE_SUFFIX                            = "_domains.pwd";
-    final static private String                               MATRIX_SHARED_BIN_COMBINATIONS_BASED_GENOME_DISTANCE_SUFFIX                   = "_bin_combinations.pwd";
-    final static private String                               NJ_TREE_MEAN_SCORE_BASED_GENOME_DISTANCE_SUFFIX                               = "_mean_score_NJ"
-                                                                                                                                                    + ForesterConstants.PHYLO_XML_SUFFIX;
-    final static private String                               NJ_TREE_SHARED_DOMAINS_BASED_GENOME_DISTANCE_SUFFIX                           = "_domains_NJ"
-                                                                                                                                                    + ForesterConstants.PHYLO_XML_SUFFIX;
-    final static private String                               NJ_TREE_SHARED_BIN_COMBINATIONS_BASED_GENOME_DISTANCE_SUFFIX                  = "_bin_combinations_NJ"
-                                                                                                                                                    + ForesterConstants.PHYLO_XML_SUFFIX;
-    final static private String                               FILTER_POSITIVE_OPTION                                                        = "pos_filter";
-    final static private String                               FILTER_NEGATIVE_OPTION                                                        = "neg_filter";
-    final static private String                               FILTER_NEGATIVE_DOMAINS_OPTION                                                = "neg_dom_filter";
-    final static private String                               INPUT_GENOMES_FILE_OPTION                                                     = "genomes";
-    final static private String                               INPUT_SPECIES_TREE_OPTION                                                     = "species_tree";
-    final static private String                               SEQ_EXTRACT_OPTION                                                            = "prot_extract";
-    final static private String                               PRG_VERSION                                                                   = "2.290";
-    final static private String                               PRG_DATE                                                                      = "130709";
-    final static private String                               E_MAIL                                                                        = "czmasek@burnham.org";
-    final static private String                               WWW                                                                           = "https://sites.google.com/site/cmzmasek/home/software/forester/surfacing";
-    final static private boolean                              IGNORE_DUFS_DEFAULT                                                           = true;
-    final static private boolean                              IGNORE_COMBINATION_WITH_SAME_DEFAULLT                                         = false;
-    final static private double                               MAX_E_VALUE_DEFAULT                                                           = -1;
-    final static private int                                  MAX_ALLOWED_OVERLAP_DEFAULT                                                   = -1;
-    private static final String                               RANDOM_SEED_FOR_FITCH_PARSIMONY_OPTION                                        = "random_seed";
-    private static final String                               CONSIDER_DOMAIN_COMBINATION_DIRECTEDNESS                                      = "consider_bdc_direction";
-    private static final String                               CONSIDER_DOMAIN_COMBINATION_DIRECTEDNESS_AND_ADJACENCY                        = "consider_bdc_adj";
-    private static final String                               SEQ_EXTRACT_SUFFIX                                                            = ".prot";
-    private static final String                               PLUS_MINUS_ANALYSIS_OPTION                                                    = "plus_minus";
-    private static final String                               PLUS_MINUS_DOM_SUFFIX                                                         = "_plus_minus_dom.txt";
-    private static final String                               PLUS_MINUS_DOM_SUFFIX_HTML                                                    = "_plus_minus_dom.html";
-    private static final String                               PLUS_MINUS_DC_SUFFIX_HTML                                                     = "_plus_minus_dc.html";
-    private static final int                                  PLUS_MINUS_ANALYSIS_MIN_DIFF_DEFAULT                                          = 0;
-    private static final double                               PLUS_MINUS_ANALYSIS_FACTOR_DEFAULT                                            = 1.0;
-    private static final String                               PLUS_MINUS_ALL_GO_IDS_DOM_SUFFIX                                              = "_plus_minus_go_ids_all.txt";
-    private static final String                               PLUS_MINUS_PASSING_GO_IDS_DOM_SUFFIX                                          = "_plus_minus_go_ids_passing.txt";
-    private static final String                               OUTPUT_LIST_OF_ALL_PROTEINS_OPTIONS                                           = "all_prot";
-    final static private String                               OUTPUT_LIST_OF_ALL_PROTEINS_PER_DOMAIN_E_VALUE_OPTION                         = "all_prot_e";
-    private static final boolean                              VERBOSE                                                                       = false;
-    private static final String                               OUTPUT_DOMAIN_COMBINATIONS_GAINED_MORE_THAN_ONCE_ANALYSIS_SUFFIX              = "_fitch_dc_gains_counts";
-    private static final String                               OUTPUT_DOMAIN_COMBINATIONS_LOST_MORE_THAN_ONCE_ANALYSIS_SUFFIX                = "_fitch_dc_losses_counts";
-    private static final String                               DOMAIN_LENGTHS_ANALYSIS_SUFFIX                                                = "_domain_lengths_analysis";
-    private static final boolean                              PERFORM_DOMAIN_LENGTH_ANALYSIS                                                = true;
-    public static final String                                ALL_PFAMS_ENCOUNTERED_SUFFIX                                                  = "_all_encountered_pfams";
-    public static final String                                ALL_PFAMS_ENCOUNTERED_WITH_GO_ANNOTATION_SUFFIX                               = "_all_encountered_pfams_with_go_annotation";
-    public static final String                                ENCOUNTERED_PFAMS_SUMMARY_SUFFIX                                              = "_encountered_pfams_summary";
-    public static final String                                ALL_PFAMS_GAINED_AS_DOMAINS_SUFFIX                                            = "_all_pfams_gained_as_domains";
-    public static final String                                ALL_PFAMS_LOST_AS_DOMAINS_SUFFIX                                              = "_all_pfams_lost_as_domains";
-    public static final String                                ALL_PFAMS_GAINED_AS_DC_SUFFIX                                                 = "_all_pfams_gained_as_dc";
-    public static final String                                ALL_PFAMS_LOST_AS_DC_SUFFIX                                                   = "_all_pfams_lost_as_dc";
-    public static final String                                BASE_DIRECTORY_PER_NODE_DOMAIN_GAIN_LOSS_FILES                                = "PER_NODE_EVENTS";
-    public static final String                                BASE_DIRECTORY_PER_SUBTREE_DOMAIN_GAIN_LOSS_FILES                             = "PER_SUBTREE_EVENTS";
-    public static final String                                D_PROMISCUITY_FILE_SUFFIX                                                     = "_domain_promiscuities";
-    private static final String                               LOG_FILE_SUFFIX                                                               = "_log.txt";
-    private static final String                               DATA_FILE_SUFFIX                                                              = "_domain_combination_data.txt";
-    private static final String                               DATA_FILE_DESC                                                                = "#SPECIES\tPRTEIN_ID\tN_TERM_DOMAIN\tC_TERM_DOMAIN\tN_TERM_DOMAIN_PER_DOMAIN_E_VALUE\tC_TERM_DOMAIN_PER_DOMAIN_E_VALUE\tN_TERM_DOMAIN_COUNTS_PER_PROTEIN\tC_TERM_DOMAIN_COUNTS_PER_PROTEIN";
-    private static final String                               WRITE_TO_NEXUS_OPTION                                                         = "nexus";
-    private static final INDIVIDUAL_SCORE_CUTOFF              INDIVIDUAL_SCORE_CUTOFF_DEFAULT                                               = INDIVIDUAL_SCORE_CUTOFF.FULL_SEQUENCE;                                                                                                                                                      //TODO look at me! change?
-    public static final String                                INDEPENDENT_DC_GAINS_FITCH_PARS_COUNTS_OUTPUT_SUFFIX                          = "_indep_dc_gains_fitch_counts.txt";
-    public static final String                                INDEPENDENT_DC_GAINS_FITCH_PARS_DC_OUTPUT_SUFFIX                              = "_indep_dc_gains_fitch_lists.txt";
-    public static final String                                INDEPENDENT_DC_GAINS_FITCH_PARS_DC_FOR_GO_MAPPING_OUTPUT_SUFFIX               = "_indep_dc_gains_fitch_lists_for_go_mapping.txt";
-    public static final String                                INDEPENDENT_DC_GAINS_FITCH_PARS_DC_FOR_GO_MAPPING_OUTPUT_UNIQUE_SUFFIX        = "_indep_dc_gains_fitch_lists_for_go_mapping_unique.txt";
-    public static final String                                LIMIT_SPEC_FOR_PROT_EX                                                        = null;                                                                                                                                                                                       // e.g. "HUMAN"; set to null for not using this feature (default).
-    public static final String                                BINARY_DOMAIN_COMBINATIONS_PARSIMONY_TREE_OUTPUT_SUFFIX_FITCH_MAPPED          = "_dc_MAPPED_secondary_features_fitch"
-                                                                                                                                                    + ForesterConstants.PHYLO_XML_SUFFIX;
-    public static final String                                INDEPENDENT_DC_GAINS_FITCH_PARS_COUNTS_MAPPED_OUTPUT_SUFFIX                   = "_indep_dc_gains_fitch_counts_MAPPED.txt";
-    public static final String                                INDEPENDENT_DC_GAINS_FITCH_PARS_DC_MAPPED_OUTPUT_SUFFIX                       = "_indep_dc_gains_fitch_lists_MAPPED.txt";
-    public static final String                                INDEPENDENT_DC_GAINS_FITCH_PARS_DC_FOR_GO_MAPPING_MAPPED_OUTPUT_SUFFIX        = "_indep_dc_gains_fitch_lists_for_go_mapping_MAPPED.txt";
-    public static final String                                INDEPENDENT_DC_GAINS_FITCH_PARS_DC_FOR_GO_MAPPING_MAPPED_OUTPUT_UNIQUE_SUFFIX = "_indep_dc_gains_fitch_lists_for_go_mapping_unique_MAPPED.txt";
-
-    private static void checkWriteabilityForPairwiseComparisons( final PrintableDomainSimilarity.PRINT_OPTION domain_similarity_print_option,
-                                                                 final String[][] input_file_properties,
-                                                                 final String automated_pairwise_comparison_suffix,
-                                                                 final File outdir ) {
-        for( int i = 0; i < input_file_properties.length; ++i ) {
-            for( int j = 0; j < i; ++j ) {
-                final String species_i = input_file_properties[ i ][ 1 ];
-                final String species_j = input_file_properties[ j ][ 1 ];
-                String pairwise_similarities_output_file_str = PAIRWISE_DOMAIN_COMPARISONS_PREFIX + species_i + "_"
-                        + species_j + automated_pairwise_comparison_suffix;
-                switch ( domain_similarity_print_option ) {
-                    case HTML:
-                        if ( !pairwise_similarities_output_file_str.endsWith( ".html" ) ) {
-                            pairwise_similarities_output_file_str += ".html";
-                        }
-                        break;
-                }
-                final String error = ForesterUtil
-                        .isWritableFile( new File( outdir == null ? pairwise_similarities_output_file_str : outdir
-                                + ForesterUtil.FILE_SEPARATOR + pairwise_similarities_output_file_str ) );
-                if ( !ForesterUtil.isEmpty( error ) ) {
-                    ForesterUtil.fatalError( surfacing.PRG_NAME, error );
-                }
-            }
-        }
-    }
-
-    private static StringBuilder createParametersAsString( final boolean ignore_dufs,
-                                                           final double e_value_max,
-                                                           final int max_allowed_overlap,
-                                                           final boolean no_engulfing_overlaps,
-                                                           final File cutoff_scores_file,
-                                                           final BinaryDomainCombination.DomainCombinationType dc_type ) {
-        final StringBuilder parameters_sb = new StringBuilder();
-        parameters_sb.append( "E-value: " + e_value_max );
-        if ( cutoff_scores_file != null ) {
-            parameters_sb.append( ", Cutoff-scores-file: " + cutoff_scores_file );
-        }
-        else {
-            parameters_sb.append( ", Cutoff-scores-file: not-set" );
-        }
-        if ( max_allowed_overlap != surfacing.MAX_ALLOWED_OVERLAP_DEFAULT ) {
-            parameters_sb.append( ", Max-overlap: " + max_allowed_overlap );
-        }
-        else {
-            parameters_sb.append( ", Max-overlap: not-set" );
-        }
-        if ( no_engulfing_overlaps ) {
-            parameters_sb.append( ", Engulfing-overlaps: not-allowed" );
-        }
-        else {
-            parameters_sb.append( ", Engulfing-overlaps: allowed" );
-        }
-        if ( ignore_dufs ) {
-            parameters_sb.append( ", Ignore-dufs: true" );
-        }
-        else {
-            parameters_sb.append( ", Ignore-dufs: false" );
-        }
-        parameters_sb.append( ", DC type (if applicable): " + dc_type );
-        return parameters_sb;
-    }
-
-    /**
-     * Warning: This side-effects 'all_bin_domain_combinations_encountered'!
-     * 
-     * 
-     * @param output_file
-     * @param all_bin_domain_combinations_changed
-     * @param sum_of_all_domains_encountered
-     * @param all_bin_domain_combinations_encountered
-     * @param is_gains_analysis
-     * @param protein_length_stats_by_dc 
-     * @throws IOException
-     */
-    private static void executeFitchGainsAnalysis( final File output_file,
-                                                   final List<BinaryDomainCombination> all_bin_domain_combinations_changed,
-                                                   final int sum_of_all_domains_encountered,
-                                                   final SortedSet<BinaryDomainCombination> all_bin_domain_combinations_encountered,
-                                                   final boolean is_gains_analysis ) throws IOException {
-        SurfacingUtil.checkForOutputFileWriteability( output_file );
-        final Writer out = ForesterUtil.createBufferedWriter( output_file );
-        final SortedMap<Object, Integer> bdc_to_counts = ForesterUtil
-                .listToSortedCountsMap( all_bin_domain_combinations_changed );
-        final SortedSet<String> all_domains_in_combination_changed_more_than_once = new TreeSet<String>();
-        final SortedSet<String> all_domains_in_combination_changed_only_once = new TreeSet<String>();
-        int above_one = 0;
-        int one = 0;
-        for( final Object bdc_object : bdc_to_counts.keySet() ) {
-            final BinaryDomainCombination bdc = ( BinaryDomainCombination ) bdc_object;
-            final int count = bdc_to_counts.get( bdc_object );
-            if ( count < 1 ) {
-                ForesterUtil.unexpectedFatalError( PRG_NAME, "count < 1 " );
-            }
-            out.write( bdc + "\t" + count + ForesterUtil.LINE_SEPARATOR );
-            if ( count > 1 ) {
-                all_domains_in_combination_changed_more_than_once.add( bdc.getId0() );
-                all_domains_in_combination_changed_more_than_once.add( bdc.getId1() );
-                above_one++;
-            }
-            else if ( count == 1 ) {
-                all_domains_in_combination_changed_only_once.add( bdc.getId0() );
-                all_domains_in_combination_changed_only_once.add( bdc.getId1() );
-                one++;
-            }
-        }
-        final int all = all_bin_domain_combinations_encountered.size();
-        int never_lost = -1;
-        if ( !is_gains_analysis ) {
-            all_bin_domain_combinations_encountered.removeAll( all_bin_domain_combinations_changed );
-            never_lost = all_bin_domain_combinations_encountered.size();
-            for( final BinaryDomainCombination bdc : all_bin_domain_combinations_encountered ) {
-                out.write( bdc + "\t" + "0" + ForesterUtil.LINE_SEPARATOR );
-            }
-        }
-        if ( is_gains_analysis ) {
-            out.write( "Sum of all distinct domain combinations appearing once               : " + one
-                    + ForesterUtil.LINE_SEPARATOR );
-            out.write( "Sum of all distinct domain combinations appearing more than once     : " + above_one
-                    + ForesterUtil.LINE_SEPARATOR );
-            out.write( "Sum of all distinct domains in combinations apppearing only once     : "
-                    + all_domains_in_combination_changed_only_once.size() + ForesterUtil.LINE_SEPARATOR );
-            out.write( "Sum of all distinct domains in combinations apppearing more than once: "
-                    + all_domains_in_combination_changed_more_than_once.size() + ForesterUtil.LINE_SEPARATOR );
-        }
-        else {
-            out.write( "Sum of all distinct domain combinations never lost                   : " + never_lost
-                    + ForesterUtil.LINE_SEPARATOR );
-            out.write( "Sum of all distinct domain combinations lost once                    : " + one
-                    + ForesterUtil.LINE_SEPARATOR );
-            out.write( "Sum of all distinct domain combinations lost more than once          : " + above_one
-                    + ForesterUtil.LINE_SEPARATOR );
-            out.write( "Sum of all distinct domains in combinations lost only once           : "
-                    + all_domains_in_combination_changed_only_once.size() + ForesterUtil.LINE_SEPARATOR );
-            out.write( "Sum of all distinct domains in combinations lost more than once: "
-                    + all_domains_in_combination_changed_more_than_once.size() + ForesterUtil.LINE_SEPARATOR );
-        }
-        out.write( "All binary combinations                                              : " + all
-                + ForesterUtil.LINE_SEPARATOR );
-        out.write( "All domains                                                          : "
-                + sum_of_all_domains_encountered );
-        out.close();
-        ForesterUtil.programMessage( surfacing.PRG_NAME,
-                                     "Wrote fitch domain combination dynamics counts analysis to \"" + output_file
-                                             + "\"" );
-    }
-
-    private static void executePlusMinusAnalysis( final File output_file,
-                                                  final List<String> plus_minus_analysis_high_copy_base,
-                                                  final List<String> plus_minus_analysis_high_copy_target,
-                                                  final List<String> plus_minus_analysis_low_copy,
-                                                  final List<GenomeWideCombinableDomains> gwcd_list,
-                                                  final SortedMap<Species, List<Protein>> protein_lists_per_species,
-                                                  final Map<String, List<GoId>> domain_id_to_go_ids_map,
-                                                  final Map<GoId, GoTerm> go_id_to_term_map,
-                                                  final List<Object> plus_minus_analysis_numbers ) {
-        final Set<String> all_spec = new HashSet<String>();
-        for( final GenomeWideCombinableDomains gwcd : gwcd_list ) {
-            all_spec.add( gwcd.getSpecies().getSpeciesId() );
-        }
-        final File html_out_dom = new File( output_file + PLUS_MINUS_DOM_SUFFIX_HTML );
-        final File plain_out_dom = new File( output_file + PLUS_MINUS_DOM_SUFFIX );
-        final File html_out_dc = new File( output_file + PLUS_MINUS_DC_SUFFIX_HTML );
-        final File all_domains_go_ids_out_dom = new File( output_file + PLUS_MINUS_ALL_GO_IDS_DOM_SUFFIX );
-        final File passing_domains_go_ids_out_dom = new File( output_file + PLUS_MINUS_PASSING_GO_IDS_DOM_SUFFIX );
-        final File proteins_file_base = new File( output_file + "" );
-        final int min_diff = ( ( Integer ) plus_minus_analysis_numbers.get( 0 ) ).intValue();
-        final double factor = ( ( Double ) plus_minus_analysis_numbers.get( 1 ) ).doubleValue();
-        try {
-            DomainCountsDifferenceUtil.calculateCopyNumberDifferences( gwcd_list,
-                                                                       protein_lists_per_species,
-                                                                       plus_minus_analysis_high_copy_base,
-                                                                       plus_minus_analysis_high_copy_target,
-                                                                       plus_minus_analysis_low_copy,
-                                                                       min_diff,
-                                                                       factor,
-                                                                       plain_out_dom,
-                                                                       html_out_dom,
-                                                                       html_out_dc,
-                                                                       domain_id_to_go_ids_map,
-                                                                       go_id_to_term_map,
-                                                                       all_domains_go_ids_out_dom,
-                                                                       passing_domains_go_ids_out_dom,
-                                                                       proteins_file_base );
-        }
-        catch ( final IOException e ) {
-            ForesterUtil.fatalError( surfacing.PRG_NAME, e.getLocalizedMessage() );
-        }
-        ForesterUtil.programMessage( surfacing.PRG_NAME, "Wrote plus minus domain analysis results to \""
-                + html_out_dom + "\"" );
-        ForesterUtil.programMessage( surfacing.PRG_NAME, "Wrote plus minus domain analysis results to \""
-                + plain_out_dom + "\"" );
-        ForesterUtil.programMessage( surfacing.PRG_NAME, "Wrote plus minus domain analysis results to \"" + html_out_dc
-                + "\"" );
-        ForesterUtil.programMessage( surfacing.PRG_NAME, "Wrote plus minus domain analysis based passing GO ids to \""
-                + passing_domains_go_ids_out_dom + "\"" );
-        ForesterUtil.programMessage( surfacing.PRG_NAME, "Wrote plus minus domain analysis based all GO ids to \""
-                + all_domains_go_ids_out_dom + "\"" );
-    }
-
-    private static Phylogeny[] getIntrees( final File[] intree_files,
-                                           final int number_of_genomes,
-                                           final String[][] input_file_properties ) {
-        final Phylogeny[] intrees = new Phylogeny[ intree_files.length ];
-        int i = 0;
-        for( final File intree_file : intree_files ) {
-            Phylogeny intree = null;
-            final String error = ForesterUtil.isReadableFile( intree_file );
-            if ( !ForesterUtil.isEmpty( error ) ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "cannot read input tree file [" + intree_file + "]: "
-                        + error );
-            }
-            try {
-                final Phylogeny[] p_array = ParserBasedPhylogenyFactory.getInstance()
-                        .create( intree_file, ParserUtils.createParserDependingOnFileType( intree_file, true ) );
-                if ( p_array.length < 1 ) {
-                    ForesterUtil.fatalError( surfacing.PRG_NAME, "file [" + intree_file
-                            + "] does not contain any phylogeny in phyloXML format" );
-                }
-                else if ( p_array.length > 1 ) {
-                    ForesterUtil.fatalError( surfacing.PRG_NAME, "file [" + intree_file
-                            + "] contains more than one phylogeny in phyloXML format" );
-                }
-                intree = p_array[ 0 ];
-            }
-            catch ( final Exception e ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "failed to read input tree from file [" + intree_file
-                        + "]: " + error );
-            }
-            if ( ( intree == null ) || intree.isEmpty() ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "input tree [" + intree_file + "] is empty" );
-            }
-            if ( !intree.isRooted() ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "input tree [" + intree_file + "] is not rooted" );
-            }
-            if ( intree.getNumberOfExternalNodes() < number_of_genomes ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME,
-                                         "number of external nodes [" + intree.getNumberOfExternalNodes()
-                                                 + "] of input tree [" + intree_file
-                                                 + "] is smaller than the number of genomes the be analyzed ["
-                                                 + number_of_genomes + "]" );
-            }
-            final StringBuilder parent_names = new StringBuilder();
-            final int nodes_lacking_name = SurfacingUtil.getNumberOfNodesLackingName( intree, parent_names );
-            if ( nodes_lacking_name > 0 ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "input tree [" + intree_file + "] has "
-                        + nodes_lacking_name + " node(s) lacking a name [parent names:" + parent_names + "]" );
-            }
-            preparePhylogenyForParsimonyAnalyses( intree, input_file_properties );
-            if ( !intree.isCompletelyBinary() ) {
-                ForesterUtil.printWarningMessage( surfacing.PRG_NAME, "input tree [" + intree_file
-                        + "] is not completely binary" );
-            }
-            intrees[ i++ ] = intree;
-        }
-        return intrees;
-    }
-
-    private static void log( final String msg, final Writer w ) {
-        try {
-            w.write( msg );
-            w.write( ForesterUtil.LINE_SEPARATOR );
-        }
-        catch ( final IOException e ) {
-            ForesterUtil.fatalError( surfacing.PRG_NAME, e.getLocalizedMessage() );
-        }
-    }
+    public final static String                                      PRG_NAME                                                                      = "surfacing";
+    public static final String                                      DOMAINS_PARSIMONY_TREE_OUTPUT_SUFFIX_DOLLO                                    = "_d_dollo"
+            + ForesterConstants.PHYLO_XML_SUFFIX;
+    public static final String                                      DOMAINS_PARSIMONY_TREE_OUTPUT_SUFFIX_FITCH                                    = "_d_fitch"
+            + ForesterConstants.PHYLO_XML_SUFFIX;
+    public static final String                                      BINARY_DOMAIN_COMBINATIONS_PARSIMONY_TREE_OUTPUT_SUFFIX_DOLLO                 = "_dc_dollo"
+            + ForesterConstants.PHYLO_XML_SUFFIX;
+    public static final String                                      BINARY_DOMAIN_COMBINATIONS_PARSIMONY_TREE_OUTPUT_SUFFIX_FITCH                 = "_dc_fitch"
+            + ForesterConstants.PHYLO_XML_SUFFIX;
+    public static final String                                      NEXUS_EXTERNAL_DOMAINS                                                        = "_dom.nex";
+    public static final String                                      NEXUS_EXTERNAL_DOMAIN_COMBINATIONS                                            = "_dc.nex";
+    public static final String                                      NEXUS_SECONDARY_FEATURES                                                      = "_secondary_features.nex";
+    public static final String                                      PARSIMONY_OUTPUT_GL_SUFFIX_DOLLO_SECONDARY_FEATURES                           = "_dollo_gl_secondary_features";
+    public static final String                                      PARSIMONY_OUTPUT_GL_COUNTS_SUFFIX_DOLLO_SECONDARY_FEATURES                    = "_dollo_glc_secondary_features";
+    public static final String                                      PARSIMONY_OUTPUT_DOLLO_GAINS_SECONDARY_FEATURES                               = "_dollo_gains_secondary_features";
+    public static final String                                      PARSIMONY_OUTPUT_DOLLO_LOSSES_SECONDARY_FEATURES                              = "_dollo_losses_secondary_features";
+    public static final String                                      PARSIMONY_OUTPUT_DOLLO_PRESENT_SECONDARY_FEATURES                             = "_dollo_present_secondary_features";
+    public static final String                                      SECONDARY_FEATURES_PARSIMONY_TREE_OUTPUT_SUFFIX_DOLLO                         = "_secondary_features_dollo"
+            + ForesterConstants.PHYLO_XML_SUFFIX;
+    public static final String                                      PARSIMONY_OUTPUT_DOLLO_ALL_GOID_D_ALL_NAMESPACES                              = "_dollo_goid_d";
+    public static final String                                      PARSIMONY_OUTPUT_FITCH_ALL_GOID_BC_ALL_NAMESPACES                             = "_fitch_goid_dc";
+    final static private String                                     HELP_OPTION_1                                                                 = "help";
+    final static private String                                     HELP_OPTION_2                                                                 = "h";
+    final static private String                                     OUTPUT_DIR_OPTION                                                             = "out_dir";
+    final static private String                                     SCORING_OPTION                                                                = "scoring";
+    private static final DomainSimilarityScoring                    SCORING_DEFAULT                                                               = DomainSimilarity.DomainSimilarityScoring.COMBINATIONS;
+    final static private String                                     SCORING_DOMAIN_COUNT_BASED                                                    = "domains";
+    final static private String                                     SCORING_PROTEIN_COUNT_BASED                                                   = "proteins";
+    final static private String                                     SCORING_COMBINATION_BASED                                                     = "combinations";
+    final static private String                                     DETAILEDNESS_OPTION                                                           = "detail";
+    private final static Detailedness                               DETAILEDNESS_DEFAULT                                                          = DomainSimilarityCalculator.Detailedness.PUNCTILIOUS;
+    final static private String                                     SPECIES_MATRIX_OPTION                                                         = "smatrix";
+    final static private String                                     DETAILEDNESS_BASIC                                                            = "basic";
+    final static private String                                     DETAILEDNESS_LIST_IDS                                                         = "list_ids";
+    final static private String                                     DETAILEDNESS_PUNCTILIOUS                                                      = "punctilious";
+    final static private String                                     DOMAIN_SIMILARITY_SORT_OPTION                                                 = "sort";
+    private static final DomainSimilarity.DomainSimilaritySortField DOMAIN_SORT_FILD_DEFAULT                                                      = DomainSimilarity.DomainSimilaritySortField.DOMAIN_ID;
+    final static private String                                     DOMAIN_SIMILARITY_SORT_MIN                                                    = "min";
+    final static private String                                     DOMAIN_SIMILARITY_SORT_MAX                                                    = "max";
+    final static private String                                     DOMAIN_SIMILARITY_SORT_SD                                                     = "sd";
+    final static private String                                     DOMAIN_SIMILARITY_SORT_MEAN                                                   = "mean";
+    final static private String                                     DOMAIN_SIMILARITY_SORT_DIFF                                                   = "diff";
+    final static private String                                     DOMAIN_SIMILARITY_SORT_COUNTS_DIFF                                            = "count_diff";
+    final static private String                                     DOMAIN_SIMILARITY_SORT_ABS_COUNTS_DIFF                                        = "abs_count_diff";
+    final static private String                                     DOMAIN_SIMILARITY_SORT_SPECIES_COUNT                                          = "species";
+    final static private String                                     DOMAIN_SIMILARITY_SORT_ALPHA                                                  = "alpha";
+    final static private String                                     DOMAIN_SIMILARITY_SORT_BY_SPECIES_COUNT_FIRST_OPTION                          = "species_first";
+    final static private String                                     DOMAIN_COUNT_SORT_OPTION                                                      = "dc_sort";
+    private static final GenomeWideCombinableDomainsSortOrder       DOMAINS_SORT_ORDER_DEFAULT                                                    = GenomeWideCombinableDomains.GenomeWideCombinableDomainsSortOrder.ALPHABETICAL_KEY_ID;
+    final static private String                                     DOMAIN_COUNT_SORT_ALPHA                                                       = "alpha";
+    final static private String                                     DOMAIN_COUNT_SORT_KEY_DOMAIN_COUNT                                            = "dom";
+    final static private String                                     DOMAIN_COUNT_SORT_KEY_DOMAIN_PROTEINS_COUNT                                   = "prot";
+    final static private String                                     DOMAIN_COUNT_SORT_COMBINATIONS_COUNT                                          = "comb";
+    final static private String                                     CUTOFF_SCORE_FILE_OPTION                                                      = "cos";
+    final static private String                                     NOT_IGNORE_DUFS_OPTION                                                        = "dufs";
+    final static private String                                     MAX_FS_E_VALUE_OPTION                                                         = "fs_e";
+    final static private String                                     MAX_I_E_VALUE_OPTION                                                          = "ie";
+    final static private String                                     MAX_ALLOWED_OVERLAP_OPTION                                                    = "mo";
+    final static private String                                     NO_ENGULFING_OVERLAP_OPTION                                                   = "no_eo";
+    final static private String                                     IGNORE_COMBINATION_WITH_SAME_OPTION                                           = "ignore_self_comb";
+    final static private String                                     PERFORM_DC_REGAIN_PROTEINS_STATS_OPTION                                       = "dc_regain_stats";
+    final static private String                                     DA_ANALYSIS_OPTION                                                            = "da_analyis";
+    final static private String                                     USE_LAST_IN_FITCH_OPTION                                                      = "last";
+    public final static String                                      PAIRWISE_DOMAIN_COMPARISONS_PREFIX                                            = "pwc_";
+    final static private String                                     PAIRWISE_DOMAIN_COMPARISONS_OPTION                                            = "pwc";
+    final static private String                                     OUTPUT_FILE_OPTION                                                            = "o";
+    final static private String                                     PFAM_TO_GO_FILE_USE_OPTION                                                    = "p2g";
+    final static private String                                     GO_OBO_FILE_USE_OPTION                                                        = "obo";
+    final static private String                                     GO_NAMESPACE_LIMIT_OPTION                                                     = "go_namespace";
+    final static private String                                     GO_NAMESPACE_LIMIT_OPTION_MOLECULAR_FUNCTION                                  = "molecular_function";
+    final static private String                                     GO_NAMESPACE_LIMIT_OPTION_BIOLOGICAL_PROCESS                                  = "biological_process";
+    final static private String                                     GO_NAMESPACE_LIMIT_OPTION_CELLULAR_COMPONENT                                  = "cellular_component";
+    final static private String                                     SECONDARY_FEATURES_PARSIMONY_MAP_FILE                                         = "secondary";
+    final static private String                                     DOMAIN_SIMILARITY_PRINT_OPTION_SIMPLE_TAB_DELIMITED                           = "simple_tab";
+    final static private String                                     DOMAIN_SIMILARITY_PRINT_OPTION_SIMPLE_HTML                                    = "simple_html";
+    final static private String                                     DOMAIN_SIMILARITY_PRINT_OPTION_DETAILED_HTML                                  = "detailed_html";
+    final static private String                                     DOMAIN_SIMILARITY_PRINT_OPTION                                                = "ds_output";
+    private static final PRINT_OPTION                               DOMAIN_SIMILARITY_PRINT_OPTION_DEFAULT                                        = DomainSimilarity.PRINT_OPTION.HTML;
+    final static private String                                     IGNORE_DOMAINS_WITHOUT_COMBINATIONS_IN_ALL_SPECIES_OPTION                     = "ignore_singlet_domains";
+    final static private String                                     IGNORE_VIRAL_IDS                                                              = "ignore_viral_ids";
+    final static private boolean                                    IGNORE_DOMAINS_WITHOUT_COMBINATIONS_IN_ALL_SPECIES_DEFAULT                    = false;
+    final static private String                                     IGNORE_DOMAINS_SPECIFIC_TO_ONE_SPECIES_OPTION                                 = "ignore_species_specific_domains";
+    final static private boolean                                    IGNORE_DOMAINS_SPECIFIC_TO_ONE_SPECIES_OPTION_DEFAULT                         = false;
+    final static private String                                     MATRIX_MEAN_SCORE_BASED_GENOME_DISTANCE_SUFFIX                                = "_mean_score.pwd";
+    final static private String                                     MATRIX_SHARED_DOMAINS_BASED_GENOME_DISTANCE_SUFFIX                            = "_domains.pwd";
+    final static private String                                     MATRIX_SHARED_BIN_COMBINATIONS_BASED_GENOME_DISTANCE_SUFFIX                   = "_bin_combinations.pwd";
+    final static private String                                     NJ_TREE_MEAN_SCORE_BASED_GENOME_DISTANCE_SUFFIX                               = "_mean_score_NJ"
+            + ForesterConstants.PHYLO_XML_SUFFIX;
+    final static private String                                     NJ_TREE_SHARED_DOMAINS_BASED_GENOME_DISTANCE_SUFFIX                           = "_domains_NJ"
+            + ForesterConstants.PHYLO_XML_SUFFIX;
+    final static private String                                     NJ_TREE_SHARED_BIN_COMBINATIONS_BASED_GENOME_DISTANCE_SUFFIX                  = "_bin_combinations_NJ"
+            + ForesterConstants.PHYLO_XML_SUFFIX;
+    final static private String                                     FILTER_POSITIVE_OPTION                                                        = "pos_filter";
+    final static private String                                     FILTER_NEGATIVE_OPTION                                                        = "neg_filter";
+    final static private String                                     FILTER_NEGATIVE_DOMAINS_OPTION                                                = "neg_dom_filter";
+    final static private String                                     INPUT_GENOMES_FILE_OPTION                                                     = "genomes";
+    final static private String                                     INPUT_SPECIES_TREE_OPTION                                                     = "species_tree";
+    final static private String                                     SEQ_EXTRACT_OPTION                                                            = "prot_extract";
+    final static private String                                     PRG_VERSION                                                                   = "2.404";
+    final static private String                                     PRG_DATE                                                                      = "140709";
+    final static private String                                     E_MAIL                                                                        = "czmasek@burnham.org";
+    final static private String                                     WWW                                                                           = "https://sites.google.com/site/cmzmasek/home/software/forester/surfacing";
+    final static private boolean                                    IGNORE_DUFS_DEFAULT                                                           = true;
+    final static private boolean                                    IGNORE_COMBINATION_WITH_SAME_DEFAULLT                                         = false;
+    final static private double                                     MAX_E_VALUE_DEFAULT                                                           = -1;
+    public final static int                                         MAX_ALLOWED_OVERLAP_DEFAULT                                                   = -1;
+    private static final String                                     RANDOM_SEED_FOR_FITCH_PARSIMONY_OPTION                                        = "random_seed";
+    private static final String                                     CONSIDER_DOMAIN_COMBINATION_DIRECTEDNESS                                      = "consider_bdc_direction";
+    private static final String                                     CONSIDER_DOMAIN_COMBINATION_DIRECTEDNESS_AND_ADJACENCY                        = "consider_bdc_adj";
+    public static final String                                      SEQ_EXTRACT_SUFFIX                                                            = ".prot";
+    public static final String                                      PLUS_MINUS_ANALYSIS_OPTION                                                    = "plus_minus";
+    public static final String                                      PLUS_MINUS_DOM_SUFFIX                                                         = "_plus_minus_dom.txt";
+    public static final String                                      PLUS_MINUS_DOM_SUFFIX_HTML                                                    = "_plus_minus_dom.html";
+    public static final String                                      PLUS_MINUS_DC_SUFFIX_HTML                                                     = "_plus_minus_dc.html";
+    public static final int                                         PLUS_MINUS_ANALYSIS_MIN_DIFF_DEFAULT                                          = 0;
+    public static final double                                      PLUS_MINUS_ANALYSIS_FACTOR_DEFAULT                                            = 1.0;
+    public static final String                                      PLUS_MINUS_ALL_GO_IDS_DOM_SUFFIX                                              = "_plus_minus_go_ids_all.txt";
+    public static final String                                      PLUS_MINUS_PASSING_GO_IDS_DOM_SUFFIX                                          = "_plus_minus_go_ids_passing.txt";
+    private static final String                                     OUTPUT_LIST_OF_ALL_PROTEINS_OPTIONS                                           = "all_prot";
+    final static private String                                     OUTPUT_LIST_OF_ALL_PROTEINS_PER_DOMAIN_E_VALUE_OPTION                         = "all_prot_e";
+    public static final boolean                                     VERBOSE                                                                       = false;
+    private static final String                                     OUTPUT_DOMAIN_COMBINATIONS_GAINED_MORE_THAN_ONCE_ANALYSIS_SUFFIX              = "_fitch_dc_gains_counts";
+    private static final String                                     OUTPUT_DOMAIN_COMBINATIONS_LOST_MORE_THAN_ONCE_ANALYSIS_SUFFIX                = "_fitch_dc_losses_counts";
+    private static final String                                     DOMAIN_LENGTHS_ANALYSIS_SUFFIX                                                = "_domain_lengths_analysis";
+    private static final String                                     PERFORM_DOMAIN_LENGTH_ANALYSIS_OPTION                                         = "dla";
+    public static final String                                      ALL_PFAMS_ENCOUNTERED_SUFFIX                                                  = "_all_encountered_pfams";
+    public static final String                                      ALL_PFAMS_ENCOUNTERED_WITH_GO_ANNOTATION_SUFFIX                               = "_all_encountered_pfams_with_go_annotation";
+    public static final String                                      ENCOUNTERED_PFAMS_SUMMARY_SUFFIX                                              = "_encountered_pfams_summary";
+    public static final String                                      ALL_PFAMS_GAINED_AS_DOMAINS_SUFFIX                                            = "_all_pfams_gained_as_domains";
+    public static final String                                      ALL_PFAMS_LOST_AS_DOMAINS_SUFFIX                                              = "_all_pfams_lost_as_domains";
+    public static final String                                      ALL_PFAMS_GAINED_AS_DC_SUFFIX                                                 = "_all_pfams_gained_as_dc";
+    public static final String                                      ALL_PFAMS_LOST_AS_DC_SUFFIX                                                   = "_all_pfams_lost_as_dc";
+    public static final String                                      BASE_DIRECTORY_PER_NODE_DOMAIN_GAIN_LOSS_FILES                                = "PER_NODE_EVENTS";
+    public static final String                                      BASE_DIRECTORY_PER_SUBTREE_DOMAIN_GAIN_LOSS_FILES                             = "PER_SUBTREE_EVENTS";
+    public static final String                                      D_PROMISCUITY_FILE_SUFFIX                                                     = "_domain_promiscuities";
+    private static final String                                     LOG_FILE_SUFFIX                                                               = "_log.txt";
+    private static final String                                     DATA_FILE_SUFFIX                                                              = "_domain_combination_data.txt";
+    private static final String                                     DATA_FILE_DESC                                                                = "#SPECIES\tPRTEIN_ID\tN_TERM_DOMAIN\tC_TERM_DOMAIN\tN_TERM_DOMAIN_PER_DOMAIN_E_VALUE\tC_TERM_DOMAIN_PER_DOMAIN_E_VALUE\tN_TERM_DOMAIN_COUNTS_PER_PROTEIN\tC_TERM_DOMAIN_COUNTS_PER_PROTEIN";
+    private static final String                                     WRITE_TO_NEXUS_OPTION                                                         = "nexus";
+    private static final String                                     PERFORM_DC_FITCH                                                              = "dc_pars";
+    private static final INDIVIDUAL_SCORE_CUTOFF                    INDIVIDUAL_SCORE_CUTOFF_DEFAULT                                               = INDIVIDUAL_SCORE_CUTOFF.FULL_SEQUENCE;                                                                                                                                                      //TODO look at me! change?
+    public static final String                                      INDEPENDENT_DC_GAINS_FITCH_PARS_COUNTS_OUTPUT_SUFFIX                          = "_indep_dc_gains_fitch_counts.txt";
+    public static final String                                      INDEPENDENT_DC_GAINS_FITCH_PARS_DC_OUTPUT_SUFFIX                              = "_indep_dc_gains_fitch_lists.txt";
+    public static final String                                      INDEPENDENT_DC_GAINS_FITCH_PARS_DC_FOR_GO_MAPPING_OUTPUT_SUFFIX               = "_indep_dc_gains_fitch_lists_for_go_mapping.txt";
+    public static final String                                      INDEPENDENT_DC_GAINS_FITCH_PARS_DC_FOR_GO_MAPPING_OUTPUT_UNIQUE_SUFFIX        = "_indep_dc_gains_fitch_lists_for_go_mapping_unique.txt";
+    public static final String                                      LIMIT_SPEC_FOR_PROT_EX                                                        = null;                                                                                                                                                                                       // e.g. "HUMAN"; set to null for not using this feature (default).
+    public static final String                                      BINARY_DOMAIN_COMBINATIONS_PARSIMONY_TREE_OUTPUT_SUFFIX_FITCH_MAPPED          = "_dc_MAPPED_secondary_features_fitch"
+            + ForesterConstants.PHYLO_XML_SUFFIX;
+    public static final String                                      INDEPENDENT_DC_GAINS_FITCH_PARS_COUNTS_MAPPED_OUTPUT_SUFFIX                   = "_indep_dc_gains_fitch_counts_MAPPED.txt";
+    public static final String                                      INDEPENDENT_DC_GAINS_FITCH_PARS_DC_MAPPED_OUTPUT_SUFFIX                       = "_indep_dc_gains_fitch_lists_MAPPED.txt";
+    public static final String                                      INDEPENDENT_DC_GAINS_FITCH_PARS_DC_FOR_GO_MAPPING_MAPPED_OUTPUT_SUFFIX        = "_indep_dc_gains_fitch_lists_for_go_mapping_MAPPED.txt";
+    public static final String                                      INDEPENDENT_DC_GAINS_FITCH_PARS_DC_FOR_GO_MAPPING_MAPPED_OUTPUT_UNIQUE_SUFFIX = "_indep_dc_gains_fitch_lists_for_go_mapping_unique_MAPPED.txt";
+    private static final boolean                                    CALC_SIMILARITY_SCORES                                                        = false;
 
     public static void main( final String args[] ) {
         final long start_time = new Date().getTime();
@@ -580,7 +304,8 @@ public class surfacing {
         }
         final List<String> allowed_options = new ArrayList<String>();
         allowed_options.add( surfacing.NOT_IGNORE_DUFS_OPTION );
-        allowed_options.add( surfacing.MAX_E_VALUE_OPTION );
+        allowed_options.add( surfacing.MAX_FS_E_VALUE_OPTION );
+        allowed_options.add( surfacing.MAX_I_E_VALUE_OPTION );
         allowed_options.add( surfacing.DETAILEDNESS_OPTION );
         allowed_options.add( surfacing.OUTPUT_FILE_OPTION );
         allowed_options.add( surfacing.DOMAIN_SIMILARITY_SORT_OPTION );
@@ -612,15 +337,19 @@ public class surfacing {
         allowed_options.add( SECONDARY_FEATURES_PARSIMONY_MAP_FILE );
         allowed_options.add( PLUS_MINUS_ANALYSIS_OPTION );
         allowed_options.add( DOMAIN_COMBINITONS_OUTPUT_OPTION_FOR_GRAPH_ANALYSIS );
+        allowed_options.add( DOMAIN_COMBINITONS_COUNTS_OUTPUT_OPTION );
         allowed_options.add( OUTPUT_LIST_OF_ALL_PROTEINS_OPTIONS );
         allowed_options.add( CONSIDER_DOMAIN_COMBINATION_DIRECTEDNESS_AND_ADJACENCY );
         allowed_options.add( WRITE_TO_NEXUS_OPTION );
         allowed_options.add( PERFORM_DC_REGAIN_PROTEINS_STATS_OPTION );
         allowed_options.add( DA_ANALYSIS_OPTION );
         allowed_options.add( USE_LAST_IN_FITCH_OPTION );
+        allowed_options.add( PERFORM_DC_FITCH );
+        allowed_options.add( PERFORM_DOMAIN_LENGTH_ANALYSIS_OPTION );
         boolean ignore_dufs = surfacing.IGNORE_DUFS_DEFAULT;
         boolean ignore_combination_with_same = surfacing.IGNORE_COMBINATION_WITH_SAME_DEFAULLT;
-        double e_value_max = surfacing.MAX_E_VALUE_DEFAULT;
+        double fs_e_value_max = surfacing.MAX_E_VALUE_DEFAULT;
+        double ie_value_max = surfacing.MAX_E_VALUE_DEFAULT;
         int max_allowed_overlap = surfacing.MAX_ALLOWED_OVERLAP_DEFAULT;
         final String dissallowed_options = cla.validateAllowedOptionsAsString( allowed_options );
         if ( dissallowed_options.length() > 0 ) {
@@ -634,6 +363,10 @@ public class surfacing {
         if ( cla.isOptionSet( WRITE_TO_NEXUS_OPTION ) ) {
             write_to_nexus = true;
         }
+        boolean perform_dc_fich = false;
+        if ( cla.isOptionSet( PERFORM_DC_FITCH ) ) {
+            perform_dc_fich = true;
+        }
         boolean perform_dc_regain_proteins_stats = false;
         if ( cla.isOptionSet( PERFORM_DC_REGAIN_PROTEINS_STATS_OPTION ) ) {
             perform_dc_regain_proteins_stats = true;
@@ -646,9 +379,21 @@ public class surfacing {
         if ( cla.isOptionSet( DOMAIN_COMBINITONS_OUTPUT_OPTION_FOR_GRAPH_ANALYSIS ) ) {
             output_binary_domain_combinationsfor_graph_analysis = true;
         }
-        if ( cla.isOptionSet( surfacing.MAX_E_VALUE_OPTION ) ) {
+        boolean output_binary_domain_combinationsfor_counts = false;
+        if ( cla.isOptionSet( DOMAIN_COMBINITONS_COUNTS_OUTPUT_OPTION ) ) {
+            output_binary_domain_combinationsfor_counts = true;
+        }
+        if ( cla.isOptionSet( surfacing.MAX_FS_E_VALUE_OPTION ) ) {
+            try {
+                fs_e_value_max = cla.getOptionValueAsDouble( surfacing.MAX_FS_E_VALUE_OPTION );
+            }
+            catch ( final Exception e ) {
+                ForesterUtil.fatalError( surfacing.PRG_NAME, "no acceptable value for E-value maximum" );
+            }
+        }
+        if ( cla.isOptionSet( surfacing.MAX_I_E_VALUE_OPTION ) ) {
             try {
-                e_value_max = cla.getOptionValueAsDouble( surfacing.MAX_E_VALUE_OPTION );
+                ie_value_max = cla.getOptionValueAsDouble( surfacing.MAX_I_E_VALUE_OPTION );
             }
             catch ( final Exception e ) {
                 ForesterUtil.fatalError( surfacing.PRG_NAME, "no acceptable value for E-value maximum" );
@@ -676,6 +421,10 @@ public class surfacing {
         if ( cla.isOptionSet( surfacing.IGNORE_COMBINATION_WITH_SAME_OPTION ) ) {
             ignore_combination_with_same = true;
         }
+        boolean domain_length_analysis = false;
+        if ( cla.isOptionSet( surfacing.PERFORM_DOMAIN_LENGTH_ANALYSIS_OPTION ) ) {
+            domain_length_analysis = true;
+        }
         boolean ignore_domains_without_combs_in_all_spec = IGNORE_DOMAINS_WITHOUT_COMBINATIONS_IN_ALL_SPECIES_DEFAULT;
         if ( cla.isOptionSet( surfacing.IGNORE_DOMAINS_WITHOUT_COMBINATIONS_IN_ALL_SPECIES_OPTION ) ) {
             ignore_domains_without_combs_in_all_spec = true;
@@ -684,6 +433,10 @@ public class surfacing {
         if ( cla.isOptionSet( surfacing.IGNORE_DOMAINS_SPECIFIC_TO_ONE_SPECIES_OPTION ) ) {
             ignore_species_specific_domains = true;
         }
+        if ( !cla.isOptionValueSet( surfacing.INPUT_SPECIES_TREE_OPTION ) ) {
+            ForesterUtil.fatalError( surfacing.PRG_NAME, "no input species tree file given: "
+                    + surfacing.INPUT_SPECIES_TREE_OPTION + "=<file>" );
+        }
         File output_file = null;
         if ( cla.isOptionSet( surfacing.OUTPUT_FILE_OPTION ) ) {
             if ( !cla.isOptionValueSet( surfacing.OUTPUT_FILE_OPTION ) ) {
@@ -752,8 +505,8 @@ public class surfacing {
                 && ( cla.isOptionSet( surfacing.FILTER_NEGATIVE_OPTION ) || cla
                         .isOptionSet( surfacing.FILTER_POSITIVE_OPTION ) ) ) {
             ForesterUtil
-                    .fatalError( surfacing.PRG_NAME,
-                                 "attempt to use both negative or positive protein filter together wirh a negative domains filter" );
+            .fatalError( surfacing.PRG_NAME,
+                         "attempt to use both negative or positive protein filter together wirh a negative domains filter" );
         }
         if ( cla.isOptionSet( surfacing.FILTER_NEGATIVE_OPTION ) ) {
             if ( !cla.isOptionValueSet( surfacing.FILTER_NEGATIVE_OPTION ) ) {
@@ -788,18 +541,18 @@ public class surfacing {
             final String msg = ForesterUtil.isReadableFile( negative_domains_filter_file );
             if ( !ForesterUtil.isEmpty( msg ) ) {
                 ForesterUtil.fatalError( surfacing.PRG_NAME, "can not read from \"" + negative_domains_filter_file
-                        + "\": " + msg );
+                                         + "\": " + msg );
             }
         }
         final List<String> plus_minus_analysis_high_copy_base_species = new ArrayList<String>();
         final List<String> plus_minus_analysis_high_copy_target_species = new ArrayList<String>();
         final List<String> plus_minus_analysis_high_low_copy_species = new ArrayList<String>();
         final List<Object> plus_minus_analysis_numbers = new ArrayList<Object>();
-        processPlusMinusAnalysisOption( cla,
-                                        plus_minus_analysis_high_copy_base_species,
-                                        plus_minus_analysis_high_copy_target_species,
-                                        plus_minus_analysis_high_low_copy_species,
-                                        plus_minus_analysis_numbers );
+        SurfacingUtil.processPlusMinusAnalysisOption( cla,
+                                                      plus_minus_analysis_high_copy_base_species,
+                                                      plus_minus_analysis_high_copy_target_species,
+                                                      plus_minus_analysis_high_low_copy_species,
+                                                      plus_minus_analysis_numbers );
         File input_genomes_file = null;
         if ( cla.isOptionSet( surfacing.INPUT_GENOMES_FILE_OPTION ) ) {
             if ( !cla.isOptionValueSet( surfacing.INPUT_GENOMES_FILE_OPTION ) ) {
@@ -810,7 +563,7 @@ public class surfacing {
             final String msg = ForesterUtil.isReadableFile( input_genomes_file );
             if ( !ForesterUtil.isEmpty( msg ) ) {
                 ForesterUtil
-                        .fatalError( surfacing.PRG_NAME, "can not read from \"" + input_genomes_file + "\": " + msg );
+                .fatalError( surfacing.PRG_NAME, "can not read from \"" + input_genomes_file + "\": " + msg );
             }
         }
         else {
@@ -839,9 +592,9 @@ public class surfacing {
             }
             else {
                 ForesterUtil.fatalError( surfacing.PRG_NAME, "unknown value \"" + scoring_str
-                        + "\" for scoring method for domain combinations similarity calculation: \"-"
-                        + surfacing.SCORING_OPTION + "=<" + surfacing.SCORING_DOMAIN_COUNT_BASED + "|"
-                        + surfacing.SCORING_PROTEIN_COUNT_BASED + "|" + surfacing.SCORING_COMBINATION_BASED + ">\"" );
+                                         + "\" for scoring method for domain combinations similarity calculation: \"-"
+                                         + surfacing.SCORING_OPTION + "=<" + surfacing.SCORING_DOMAIN_COUNT_BASED + "|"
+                                         + surfacing.SCORING_PROTEIN_COUNT_BASED + "|" + surfacing.SCORING_COMBINATION_BASED + ">\"" );
             }
         }
         boolean sort_by_species_count_first = false;
@@ -907,10 +660,10 @@ public class surfacing {
         if ( cla.isOptionSet( surfacing.SEQ_EXTRACT_OPTION ) ) {
             if ( !cla.isOptionValueSet( surfacing.SEQ_EXTRACT_OPTION ) ) {
                 ForesterUtil
-                        .fatalError( surfacing.PRG_NAME,
-                                     "no domain ids given for sequences with given domains to be extracted : -"
-                                             + surfacing.SEQ_EXTRACT_OPTION
-                                             + "=<ordered domain sequences, domain ids separated by '~', sequences separated by '#'>" );
+                .fatalError( surfacing.PRG_NAME,
+                             "no domain ids given for sequences with given domains to be extracted : -"
+                                     + surfacing.SEQ_EXTRACT_OPTION
+                                     + "=<ordered domain sequences, domain ids separated by '~', sequences separated by '#'>" );
             }
             query_domain_ids = cla.getOptionValue( surfacing.SEQ_EXTRACT_OPTION );
         }
@@ -966,17 +719,17 @@ public class surfacing {
             }
             else {
                 ForesterUtil.fatalError( surfacing.PRG_NAME, "unknown value \"" + sort_str
-                        + "\" for domain combinations similarities sorting: \"-"
-                        + surfacing.DOMAIN_SIMILARITY_SORT_OPTION + "=<" + surfacing.DOMAIN_SIMILARITY_SORT_ALPHA + "|"
-                        + surfacing.DOMAIN_SIMILARITY_SORT_MAX + "|" + surfacing.DOMAIN_SIMILARITY_SORT_MIN + "|"
-                        + surfacing.DOMAIN_SIMILARITY_SORT_MEAN + "|" + surfacing.DOMAIN_SIMILARITY_SORT_DIFF + "|"
-                        + surfacing.DOMAIN_SIMILARITY_SORT_ABS_COUNTS_DIFF + "|"
-                        + surfacing.DOMAIN_SIMILARITY_SORT_COUNTS_DIFF + "|" + "|"
-                        + surfacing.DOMAIN_SIMILARITY_SORT_SPECIES_COUNT + "|" + surfacing.DOMAIN_SIMILARITY_SORT_SD
-                        + ">\"" );
+                                         + "\" for domain combinations similarities sorting: \"-"
+                                         + surfacing.DOMAIN_SIMILARITY_SORT_OPTION + "=<" + surfacing.DOMAIN_SIMILARITY_SORT_ALPHA + "|"
+                                         + surfacing.DOMAIN_SIMILARITY_SORT_MAX + "|" + surfacing.DOMAIN_SIMILARITY_SORT_MIN + "|"
+                                         + surfacing.DOMAIN_SIMILARITY_SORT_MEAN + "|" + surfacing.DOMAIN_SIMILARITY_SORT_DIFF + "|"
+                                         + surfacing.DOMAIN_SIMILARITY_SORT_ABS_COUNTS_DIFF + "|"
+                                         + surfacing.DOMAIN_SIMILARITY_SORT_COUNTS_DIFF + "|" + "|"
+                                         + surfacing.DOMAIN_SIMILARITY_SORT_SPECIES_COUNT + "|" + surfacing.DOMAIN_SIMILARITY_SORT_SD
+                                         + ">\"" );
             }
         }
-        PrintableDomainSimilarity.PRINT_OPTION domain_similarity_print_option = DOMAIN_SIMILARITY_PRINT_OPTION_DEFAULT;
+        DomainSimilarity.PRINT_OPTION domain_similarity_print_option = DOMAIN_SIMILARITY_PRINT_OPTION_DEFAULT;
         if ( cla.isOptionSet( surfacing.DOMAIN_SIMILARITY_PRINT_OPTION ) ) {
             if ( !cla.isOptionValueSet( surfacing.DOMAIN_SIMILARITY_PRINT_OPTION ) ) {
                 ForesterUtil.fatalError( surfacing.PRG_NAME, "no value for print option: -"
@@ -986,13 +739,13 @@ public class surfacing {
             }
             final String sort = cla.getOptionValue( surfacing.DOMAIN_SIMILARITY_PRINT_OPTION ).toLowerCase();
             if ( sort.equals( surfacing.DOMAIN_SIMILARITY_PRINT_OPTION_DETAILED_HTML ) ) {
-                domain_similarity_print_option = PrintableDomainSimilarity.PRINT_OPTION.HTML;
+                domain_similarity_print_option = DomainSimilarity.PRINT_OPTION.HTML;
             }
             else if ( sort.equals( surfacing.DOMAIN_SIMILARITY_PRINT_OPTION_SIMPLE_HTML ) ) {
                 ForesterUtil.fatalError( surfacing.PRG_NAME, "simple HTML output not implemented yet :(" );
             }
             else if ( sort.equals( surfacing.DOMAIN_SIMILARITY_PRINT_OPTION_SIMPLE_TAB_DELIMITED ) ) {
-                domain_similarity_print_option = PrintableDomainSimilarity.PRINT_OPTION.SIMPLE_TAB_DELIMITED;
+                domain_similarity_print_option = DomainSimilarity.PRINT_OPTION.SIMPLE_TAB_DELIMITED;
             }
             else {
                 ForesterUtil.fatalError( surfacing.PRG_NAME, "unknown value \"" + sort + "\" for print option: -"
@@ -1025,13 +778,13 @@ public class surfacing {
             }
             else {
                 ForesterUtil.fatalError( surfacing.PRG_NAME, "unknown value \"" + sort
-                        + "\" for sorting of domain counts: \"-" + surfacing.DOMAIN_COUNT_SORT_OPTION + "=<"
-                        + surfacing.DOMAIN_COUNT_SORT_ALPHA + "|" + surfacing.DOMAIN_COUNT_SORT_KEY_DOMAIN_COUNT + "|"
-                        + surfacing.DOMAIN_COUNT_SORT_KEY_DOMAIN_PROTEINS_COUNT + "|"
-                        + surfacing.DOMAIN_COUNT_SORT_COMBINATIONS_COUNT + ">\"" );
+                                         + "\" for sorting of domain counts: \"-" + surfacing.DOMAIN_COUNT_SORT_OPTION + "=<"
+                                         + surfacing.DOMAIN_COUNT_SORT_ALPHA + "|" + surfacing.DOMAIN_COUNT_SORT_KEY_DOMAIN_COUNT + "|"
+                                         + surfacing.DOMAIN_COUNT_SORT_KEY_DOMAIN_PROTEINS_COUNT + "|"
+                                         + surfacing.DOMAIN_COUNT_SORT_COMBINATIONS_COUNT + ">\"" );
             }
         }
-        final String[][] input_file_properties = processInputGenomesFile( input_genomes_file );
+        final String[][] input_file_properties = SurfacingUtil.processInputGenomesFile( input_genomes_file );
         final int number_of_genomes = input_file_properties.length;
         if ( number_of_genomes < 2 ) {
             ForesterUtil.fatalError( surfacing.PRG_NAME, "cannot analyze less than two files" );
@@ -1041,10 +794,10 @@ public class surfacing {
                     + surfacing.PAIRWISE_DOMAIN_COMPARISONS_OPTION
                     + "=<suffix> to turn on pairwise analyses with less than three input files" );
         }
-        checkWriteabilityForPairwiseComparisons( domain_similarity_print_option,
-                                                 input_file_properties,
-                                                 automated_pairwise_comparison_suffix,
-                                                 out_dir );
+        SurfacingUtil.checkWriteabilityForPairwiseComparisons( domain_similarity_print_option,
+                                                               input_file_properties,
+                                                               automated_pairwise_comparison_suffix,
+                                                               out_dir );
         for( int i = 0; i < number_of_genomes; i++ ) {
             File dcc_outfile = new File( input_file_properties[ i ][ 1 ]
                     + surfacing.DOMAIN_COMBINITON_COUNTS_OUTPUTFILE_SUFFIX );
@@ -1053,62 +806,56 @@ public class surfacing {
             }
             SurfacingUtil.checkForOutputFileWriteability( dcc_outfile );
         }
-        File pfam_to_go_file = null;
-        Map<String, List<GoId>> domain_id_to_go_ids_map = null;
-        int domain_id_to_go_ids_count = 0;
+        File pfam_to_go_file = new File( "pfam2go.txt" );
         if ( cla.isOptionSet( surfacing.PFAM_TO_GO_FILE_USE_OPTION ) ) {
             if ( !cla.isOptionValueSet( surfacing.PFAM_TO_GO_FILE_USE_OPTION ) ) {
                 ForesterUtil.fatalError( surfacing.PRG_NAME, "no value for Pfam to GO mapping file: -"
                         + surfacing.PFAM_TO_GO_FILE_USE_OPTION + "=<file>" );
             }
             pfam_to_go_file = new File( cla.getOptionValue( surfacing.PFAM_TO_GO_FILE_USE_OPTION ) );
-            final String error = ForesterUtil.isReadableFile( pfam_to_go_file );
-            if ( !ForesterUtil.isEmpty( error ) ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "cannot read Pfam to GO mapping file: " + error );
-            }
-            try {
-                final PfamToGoParser parser = new PfamToGoParser( pfam_to_go_file );
-                final List<PfamToGoMapping> pfam_to_go_mappings = parser.parse();
-                domain_id_to_go_ids_map = SurfacingUtil.createDomainIdToGoIdMap( pfam_to_go_mappings );
-                if ( parser.getMappingCount() < domain_id_to_go_ids_map.size() ) {
-                    ForesterUtil.unexpectedFatalError( surfacing.PRG_NAME,
-                                                       "parser.getMappingCount() < domain_id_to_go_ids_map.size()" );
-                }
-                domain_id_to_go_ids_count = parser.getMappingCount();
-            }
-            catch ( final IOException e ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "cannot read from Pfam to GO mapping file: " + e );
+        }
+        final String error1 = ForesterUtil.isReadableFile( pfam_to_go_file );
+        if ( !ForesterUtil.isEmpty( error1 ) ) {
+            ForesterUtil.fatalError( surfacing.PRG_NAME, "cannot read Pfam to GO mapping file: " + error1 );
+        }
+        Map<String, List<GoId>> domain_id_to_go_ids_map = null;
+        int domain_id_to_go_ids_count = 0;
+        try {
+            final PfamToGoParser parser = new PfamToGoParser( pfam_to_go_file );
+            final List<PfamToGoMapping> pfam_to_go_mappings = parser.parse();
+            domain_id_to_go_ids_map = SurfacingUtil.createDomainIdToGoIdMap( pfam_to_go_mappings );
+            if ( parser.getMappingCount() < domain_id_to_go_ids_map.size() ) {
+                ForesterUtil.unexpectedFatalError( surfacing.PRG_NAME,
+                        "parser.getMappingCount() < domain_id_to_go_ids_map.size()" );
             }
+            domain_id_to_go_ids_count = parser.getMappingCount();
         }
-        File go_obo_file = null;
-        List<GoTerm> go_terms = null;
+        catch ( final IOException e ) {
+            ForesterUtil.fatalError( surfacing.PRG_NAME, "cannot read from Pfam to GO mapping file: " + e );
+        }
+        File go_obo_file = new File( "go.obo" );
         if ( cla.isOptionSet( surfacing.GO_OBO_FILE_USE_OPTION ) ) {
             if ( !cla.isOptionValueSet( surfacing.GO_OBO_FILE_USE_OPTION ) ) {
                 ForesterUtil.fatalError( surfacing.PRG_NAME, "no value for GO OBO file: -"
                         + surfacing.GO_OBO_FILE_USE_OPTION + "=<file>" );
             }
-            if ( ( domain_id_to_go_ids_map == null ) || ( domain_id_to_go_ids_map.size() < 1 ) ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "cannot use GO OBO file (-"
-                        + surfacing.GO_OBO_FILE_USE_OPTION + "=<file>) without Pfam to GO mapping file ("
-                        + surfacing.PFAM_TO_GO_FILE_USE_OPTION + "=<file>)" );
-            }
             go_obo_file = new File( cla.getOptionValue( surfacing.GO_OBO_FILE_USE_OPTION ) );
-            final String error = ForesterUtil.isReadableFile( go_obo_file );
-            if ( !ForesterUtil.isEmpty( error ) ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "cannot read GO OBO file: " + error );
-            }
-            try {
-                final OBOparser parser = new OBOparser( go_obo_file, OBOparser.ReturnType.BASIC_GO_TERM );
-                go_terms = parser.parse();
-                if ( parser.getGoTermCount() != go_terms.size() ) {
-                    ForesterUtil
-                            .unexpectedFatalError( surfacing.PRG_NAME, "parser.getGoTermCount() != go_terms.size()" );
-                }
-            }
-            catch ( final IOException e ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "cannot read from GO OBO file: " + e );
+        }
+        final String error2 = ForesterUtil.isReadableFile( go_obo_file );
+        if ( !ForesterUtil.isEmpty( error2 ) ) {
+            ForesterUtil.fatalError( surfacing.PRG_NAME, "cannot read GO OBO file: " + error2 );
+        }
+        List<GoTerm> go_terms = null;
+        try {
+            final OBOparser parser = new OBOparser( go_obo_file, OBOparser.ReturnType.BASIC_GO_TERM );
+            go_terms = parser.parse();
+            if ( parser.getGoTermCount() != go_terms.size() ) {
+                ForesterUtil.unexpectedFatalError( surfacing.PRG_NAME, "parser.getGoTermCount() != go_terms.size()" );
             }
         }
+        catch ( final IOException e ) {
+            ForesterUtil.fatalError( surfacing.PRG_NAME, "cannot read from GO OBO file: " + e );
+        }
         Map<GoId, GoTerm> go_id_to_term_map = null;
         if ( ( ( domain_id_to_go_ids_map != null ) && ( domain_id_to_go_ids_map.size() > 0 ) )
                 && ( ( go_terms != null ) && ( go_terms.size() > 0 ) ) ) {
@@ -1142,10 +889,10 @@ public class surfacing {
             }
             else {
                 ForesterUtil.fatalError( surfacing.PRG_NAME, "unknown value \"" + go_namespace_limit_str
-                        + "\" for GO namespace limit: \"-" + surfacing.GO_NAMESPACE_LIMIT_OPTION + "=<"
-                        + surfacing.GO_NAMESPACE_LIMIT_OPTION_MOLECULAR_FUNCTION + "|"
-                        + surfacing.GO_NAMESPACE_LIMIT_OPTION_BIOLOGICAL_PROCESS + "|"
-                        + surfacing.GO_NAMESPACE_LIMIT_OPTION_CELLULAR_COMPONENT + ">\"" );
+                                         + "\" for GO namespace limit: \"-" + surfacing.GO_NAMESPACE_LIMIT_OPTION + "=<"
+                                         + surfacing.GO_NAMESPACE_LIMIT_OPTION_MOLECULAR_FUNCTION + "|"
+                                         + surfacing.GO_NAMESPACE_LIMIT_OPTION_BIOLOGICAL_PROCESS + "|"
+                                         + surfacing.GO_NAMESPACE_LIMIT_OPTION_CELLULAR_COMPONENT + ">\"" );
             }
         }
         if ( ( domain_similarity_sort_field == DomainSimilarity.DomainSimilaritySortField.MAX_COUNTS_DIFFERENCE )
@@ -1178,8 +925,9 @@ public class surfacing {
                 intree_files = new File[ 1 ];
                 intree_files[ 0 ] = new File( intrees_str );
             }
-            intrees = getIntrees( intree_files, number_of_genomes, input_file_properties );
+            intrees = SurfacingUtil.obtainAndPreProcessIntrees( intree_files, number_of_genomes, input_file_properties );
         }
+        final Phylogeny intree_0_orig = SurfacingUtil.obtainFirstIntree( intree_files[ 0 ] );
         long random_number_seed_for_fitch_parsimony = 0l;
         boolean radomize_fitch_parsimony = false;
         if ( cla.isOptionSet( surfacing.RANDOM_SEED_FOR_FITCH_PARSIMONY_OPTION ) ) {
@@ -1201,20 +949,20 @@ public class surfacing {
                 || ( negative_domains_filter_file != null ) ) {
             filter = new TreeSet<String>();
             if ( positive_filter_file != null ) {
-                processFilter( positive_filter_file, filter );
+                SurfacingUtil.processFilter( positive_filter_file, filter );
             }
             else if ( negative_filter_file != null ) {
-                processFilter( negative_filter_file, filter );
+                SurfacingUtil.processFilter( negative_filter_file, filter );
             }
             else if ( negative_domains_filter_file != null ) {
-                processFilter( negative_domains_filter_file, filter );
+                SurfacingUtil.processFilter( negative_domains_filter_file, filter );
             }
         }
         Map<String, Set<String>>[] domain_id_to_secondary_features_maps = null;
         File[] secondary_features_map_files = null;
         final File domain_lengths_analysis_outfile = new File( out_dir + ForesterUtil.FILE_SEPARATOR + output_file
-                + DOMAIN_LENGTHS_ANALYSIS_SUFFIX );
-        if ( PERFORM_DOMAIN_LENGTH_ANALYSIS ) {
+                                                               + DOMAIN_LENGTHS_ANALYSIS_SUFFIX );
+        if ( domain_length_analysis ) {
             SurfacingUtil.checkForOutputFileWriteability( domain_lengths_analysis_outfile );
         }
         if ( cla.isOptionSet( surfacing.SECONDARY_FEATURES_PARSIMONY_MAP_FILE ) ) {
@@ -1272,21 +1020,21 @@ public class surfacing {
         if ( positive_filter_file != null ) {
             final int filter_size = filter.size();
             System.out.println( "Positive protein filter     : " + positive_filter_file + " [" + filter_size
-                    + " domain ids]" );
+                                + " domain ids]" );
             html_desc.append( "<tr><td>Positive protein filter:</td><td>" + positive_filter_file + " [" + filter_size
-                    + " domain ids]</td></tr>" + nl );
+                              + " domain ids]</td></tr>" + nl );
         }
         if ( negative_filter_file != null ) {
             final int filter_size = filter.size();
             System.out.println( "Negative protein filter     : " + negative_filter_file + " [" + filter_size
-                    + " domain ids]" );
+                                + " domain ids]" );
             html_desc.append( "<tr><td>Negative protein filter:</td><td>" + negative_filter_file + " [" + filter_size
-                    + " domain ids]</td></tr>" + nl );
+                              + " domain ids]</td></tr>" + nl );
         }
         if ( negative_domains_filter_file != null ) {
             final int filter_size = filter.size();
             System.out.println( "Negative domain filter      : " + negative_domains_filter_file + " [" + filter_size
-                    + " domain ids]" );
+                                + " domain ids]" );
             html_desc.append( "<tr><td>Negative domain filter:</td><td>" + negative_domains_filter_file + " ["
                     + filter_size + " domain ids]</td></tr>" + nl );
         }
@@ -1305,15 +1053,19 @@ public class surfacing {
             }
             System.out.println( "Plus-minus analysis         : " + plus1 + "&& " + plus0 + "&& " + minus );
             html_desc.append( "<tr><td>Plus-minus analysis:</td><td>" + plus1 + "&& " + plus0 + "&& " + minus
-                    + "</td></tr>" + nl );
+                              + "</td></tr>" + nl );
         }
         if ( cutoff_scores_file != null ) {
             System.out.println( "Cutoff scores file          : " + cutoff_scores_file );
             html_desc.append( "<tr><td>Cutoff scores file:</td><td>" + cutoff_scores_file + "</td></tr>" + nl );
         }
-        if ( e_value_max >= 0.0 ) {
-            System.out.println( "E-value maximum (inclusive) : " + e_value_max );
-            html_desc.append( "<tr><td>E-value maximum (inclusive):</td><td>" + e_value_max + "</td></tr>" + nl );
+        if ( ie_value_max >= 0.0 ) {
+            System.out.println( "iE-value maximum (incl)     : " + ie_value_max );
+            html_desc.append( "<tr><td>iE-value maximum (inclusive):</td><td>" + ie_value_max + "</td></tr>" + nl );
+        }
+        if ( fs_e_value_max >= 0.0 ) {
+            System.out.println( "FS E-value maximum (incl)   : " + fs_e_value_max );
+            html_desc.append( "<tr><td>FS E-value maximum (inclusive):</td><td>" + fs_e_value_max + "</td></tr>" + nl );
         }
         if ( output_protein_lists_for_all_domains ) {
             System.out.println( "Domain E-value max          : " + output_list_of_all_proteins_per_domain_e_value_max );
@@ -1334,16 +1086,16 @@ public class surfacing {
         if ( no_engulfing_overlaps ) {
             System.out.println( "Ignore engulfed domains     : " + no_engulfing_overlaps );
             html_desc.append( "<tr><td>Ignore (lower confidence) engulfed domains:</td><td>" + no_engulfing_overlaps
-                    + "</td></tr>" + nl );
+                              + "</td></tr>" + nl );
         }
         System.out.println( "Ignore singlet domains      : " + ignore_domains_without_combs_in_all_spec );
         html_desc
-                .append( "<tr><td>Ignore singlet domains for domain combination similarity analyses (not for parsimony analyses):</td><td>"
-                        + ignore_domains_without_combs_in_all_spec + "</td></tr>" + nl );
+        .append( "<tr><td>Ignore singlet domains for domain combination similarity analyses (not for parsimony analyses):</td><td>"
+                + ignore_domains_without_combs_in_all_spec + "</td></tr>" + nl );
         System.out.println( "Ignore species specific doms: " + ignore_species_specific_domains );
         html_desc
-                .append( "<tr><td>Ignore species specific domains for domain combination similarity analyses (not for parsimony analyses):</td><td>"
-                        + ignore_species_specific_domains + "</td></tr>" + nl );
+        .append( "<tr><td>Ignore species specific domains for domain combination similarity analyses (not for parsimony analyses):</td><td>"
+                + ignore_species_specific_domains + "</td></tr>" + nl );
         System.out.println( "Ignore combination with self: " + ignore_combination_with_same );
         html_desc.append( "<tr><td>Ignore combination with self for domain combination similarity analyses:</td><td>"
                 + ignore_combination_with_same + "</td></tr>" + nl );
@@ -1358,14 +1110,20 @@ public class surfacing {
                     + ( dc_type == BinaryDomainCombination.DomainCombinationType.DIRECTED_ADJACTANT ) + "</td></tr>"
                     + nl );
         }
-        System.out.println( "Use last in Fitch parimony  : " + use_last_in_fitch_parsimony );
-        html_desc.append( "<tr><td>Use last in Fitch parimon:</td><td>" + use_last_in_fitch_parsimony + "</td></tr>"
-                + nl );
+        System.out.println( "Fitch parsimony of DCs      : " + perform_dc_fich );
+        html_desc.append( "<tr><td>Fitch parsimony of DCs:</td><td>" + perform_dc_fich + "</td></tr>" + nl );
+        if ( perform_dc_fich ) {
+            System.out.println( "Use last in Fitch parsimony : " + use_last_in_fitch_parsimony );
+            html_desc.append( "<tr><td>Use last in Fitch parsimony:</td><td>" + use_last_in_fitch_parsimony
+                              + "</td></tr>" + nl );
+        }
         System.out.println( "Write to Nexus files        : " + write_to_nexus );
         html_desc.append( "<tr><td>Write to Nexus files:</td><td>" + write_to_nexus + "</td></tr>" + nl );
-        System.out.println( "DC regain prot stats        : " + perform_dc_regain_proteins_stats );
-        html_desc.append( "<tr><td>DC regain prot stats:</td><td>" + perform_dc_regain_proteins_stats + "</td></tr>"
-                + nl );
+        if ( perform_dc_fich ) {
+            System.out.println( "DC regain prot stats        : " + perform_dc_regain_proteins_stats );
+            html_desc.append( "<tr><td>DC regain prot stats:</td><td>" + perform_dc_regain_proteins_stats
+                              + "</td></tr>" + nl );
+        }
         System.out.println( "DA analysis                 : " + da_analysis );
         html_desc.append( "<tr><td>DA analysis :</td><td>" + da_analysis + "</td></tr>" + nl );
         System.out.print( "Domain counts sort order    : " );
@@ -1392,7 +1150,7 @@ public class surfacing {
         }
         if ( domain_id_to_go_ids_map != null ) {
             System.out.println( "Pfam to GO mappings from    : " + pfam_to_go_file + " [" + domain_id_to_go_ids_count
-                    + " mappings]" );
+                                + " mappings]" );
             html_desc.append( "<tr><td>Pfam to GO mappings from:</td><td>" + pfam_to_go_file + " ["
                     + domain_id_to_go_ids_count + " mappings]" + "</td></tr>" + nl );
         }
@@ -1408,7 +1166,7 @@ public class surfacing {
         if ( perform_pwc ) {
             System.out.println( "Suffix for PWC files        : " + automated_pairwise_comparison_suffix );
             html_desc.append( "<tr><td>Suffix for PWC files</td><td>" + automated_pairwise_comparison_suffix
-                    + "</td></tr>" + nl );
+                              + "</td></tr>" + nl );
         }
         if ( out_dir != null ) {
             System.out.println( "Output directory            : " + out_dir );
@@ -1545,14 +1303,14 @@ public class surfacing {
                     break;
                 default:
                     ForesterUtil
-                            .unexpectedFatalError( surfacing.PRG_NAME, "unknown value for sorting for similarities" );
+                    .unexpectedFatalError( surfacing.PRG_NAME, "unknown value for sorting for similarities" );
             }
             System.out.println();
             html_desc.append( "</td></tr>" + nl );
             if ( ( intrees != null ) && ( intrees.length > 0 ) ) {
                 for( final File intree_file : intree_files ) {
                     html_desc.append( "<tr><td>Intree for gain/loss parsimony analysis:</td><td>" + intree_file
-                            + "</td></tr>" + nl );
+                                      + "</td></tr>" + nl );
                     System.out.println( "  Intree for gain/loss pars.: " + intree_file );
                 }
             }
@@ -1584,7 +1342,8 @@ public class surfacing {
             }
         } // if ( perform_pwc ) {
         System.out.println();
-        html_desc.append( "<tr><td>Command line:</td><td>\n" + cla.getCommandLineArgsAsString() + "\n</td></tr>" + nl );
+        html_desc.append( "<tr><td>Command line:</td><td>" + nl + nl + cla.getCommandLineArgsAsString() + nl + nl
+                          + "</td></tr>" + nl );
         System.out.println( "Command line                : " + cla.getCommandLineArgsAsString() );
         BufferedWriter[] query_domains_writer_ary = null;
         List<String>[] query_domain_ids_array = null;
@@ -1631,9 +1390,8 @@ public class surfacing {
             all_bin_domain_combinations_gained_fitch = new ArrayList<BinaryDomainCombination>();
             all_bin_domain_combinations_lost_fitch = new ArrayList<BinaryDomainCombination>();
         }
-        final DomainLengthsTable domain_lengths_table = new DomainLengthsTable();
         final File per_genome_domain_promiscuity_statistics_file = new File( out_dir + ForesterUtil.FILE_SEPARATOR
-                + output_file + D_PROMISCUITY_FILE_SUFFIX );
+                                                                             + output_file + D_PROMISCUITY_FILE_SUFFIX );
         BufferedWriter per_genome_domain_promiscuity_statistics_writer = null;
         try {
             per_genome_domain_promiscuity_statistics_writer = new BufferedWriter( new FileWriter( per_genome_domain_promiscuity_statistics_file ) );
@@ -1667,8 +1425,8 @@ public class surfacing {
         catch ( final IOException e2 ) {
             ForesterUtil.fatalError( surfacing.PRG_NAME, e2.getMessage() );
         }
-        final DescriptiveStatistics protein_coverage_stats = new BasicDescriptiveStatistics();
-        final DescriptiveStatistics all_genomes_domains_per_potein_stats = new BasicDescriptiveStatistics();
+        DescriptiveStatistics protein_coverage_stats = new BasicDescriptiveStatistics();
+        DescriptiveStatistics all_genomes_domains_per_potein_stats = new BasicDescriptiveStatistics();
         final SortedMap<Integer, Integer> all_genomes_domains_per_potein_histo = new TreeMap<Integer, Integer>();
         final SortedSet<String> domains_which_are_always_single = new TreeSet<String>();
         final SortedSet<String> domains_which_are_sometimes_single_sometimes_not = new TreeSet<String>();
@@ -1676,7 +1434,7 @@ public class surfacing {
         BufferedWriter domains_per_potein_stats_writer = null;
         try {
             domains_per_potein_stats_writer = new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR
-                    + output_file + "_domains_per_potein_stats.txt" ) );
+                                                                                  + output_file + "_domains_per_potein_stats.txt" ) );
             domains_per_potein_stats_writer.write( "Genome" );
             domains_per_potein_stats_writer.write( "\t" );
             domains_per_potein_stats_writer.write( "Mean" );
@@ -1702,17 +1460,21 @@ public class surfacing {
             protein_length_stats_by_dc = new HashMap<String, DescriptiveStatistics>();
             domain_number_stats_by_dc = new HashMap<String, DescriptiveStatistics>();
         }
+        DomainLengthsTable domain_lengths_table = null;
+        if ( domain_length_analysis ) {
+            domain_lengths_table = new DomainLengthsTable();
+        }
         // Main loop:
         final SortedMap<String, Set<String>> distinct_domain_architecutures_per_genome = new TreeMap<String, Set<String>>();
         final SortedMap<String, Integer> distinct_domain_architecuture_counts = new TreeMap<String, Integer>();
         for( int i = 0; i < number_of_genomes; ++i ) {
             System.out.println();
             System.out.println( ( i + 1 ) + "/" + number_of_genomes );
-            log( ( i + 1 ) + "/" + number_of_genomes, log_writer );
+            SurfacingUtil.log( ( i + 1 ) + "/" + number_of_genomes, log_writer );
             System.out.println( "Processing                                     : " + input_file_properties[ i ][ 1 ]
                     + " [" + input_file_properties[ i ][ 0 ] + "]" );
-            log( "Genome                                         : " + input_file_properties[ i ][ 1 ] + " ["
-                    + input_file_properties[ i ][ 0 ] + "]", log_writer );
+            SurfacingUtil.log( "Genome                                         : " + input_file_properties[ i ][ 1 ]
+                    + " [" + input_file_properties[ i ][ 0 ] + "]", log_writer );
             HmmscanPerDomainTableParser parser = null;
             INDIVIDUAL_SCORE_CUTOFF ind_score_cutoff = INDIVIDUAL_SCORE_CUTOFF.NONE;
             if ( individual_score_cutoffs != null ) {
@@ -1743,8 +1505,11 @@ public class surfacing {
                                                           ind_score_cutoff,
                                                           true );
             }
-            if ( e_value_max >= 0.0 ) {
-                parser.setEValueMaximum( e_value_max );
+            if ( fs_e_value_max >= 0.0 ) {
+                parser.setFsEValueMaximum( fs_e_value_max );
+            }
+            if ( ie_value_max >= 0.0 ) {
+                parser.setIEValueMaximum( ie_value_max );
             }
             parser.setIgnoreDufs( ignore_dufs );
             parser.setIgnoreVirusLikeIds( ignore_virus_like_ids );
@@ -1783,69 +1548,87 @@ public class surfacing {
                                                                        distinct_domain_architecuture_counts );
             }
             System.out.println( "Number of proteins encountered                 : " + parser.getProteinsEncountered() );
-            log( "Number of proteins encountered                 : " + parser.getProteinsEncountered(), log_writer );
+            SurfacingUtil.log( "Number of proteins encountered                 : " + parser.getProteinsEncountered(),
+                               log_writer );
             System.out.println( "Number of proteins stored                      : " + protein_list.size() );
-            log( "Number of proteins stored                      : " + protein_list.size(), log_writer );
+            SurfacingUtil.log( "Number of proteins stored                      : " + protein_list.size(), log_writer );
             System.out.println( "Coverage                                       : "
                     + ForesterUtil.roundToInt( 100.0 * coverage ) + "%" );
-            log( "Coverage                                       : " + ForesterUtil.roundToInt( 100.0 * coverage )
-                    + "%", log_writer );
+            SurfacingUtil.log( "Coverage                                       : "
+                    + ForesterUtil.roundToInt( 100.0 * coverage ) + "%",
+                    log_writer );
             System.out.println( "Domains encountered                            : " + parser.getDomainsEncountered() );
-            log( "Domains encountered                            : " + parser.getDomainsEncountered(), log_writer );
+            SurfacingUtil.log( "Domains encountered                            : " + parser.getDomainsEncountered(),
+                               log_writer );
             System.out.println( "Domains stored                                 : " + parser.getDomainsStored() );
-            log( "Domains stored                                 : " + parser.getDomainsStored(), log_writer );
+            SurfacingUtil.log( "Domains stored                                 : " + parser.getDomainsStored(),
+                               log_writer );
             System.out.println( "Distinct domains stored                        : "
                     + parser.getDomainsStoredSet().size() );
-            log( "Distinct domains stored                        : " + parser.getDomainsStoredSet().size(), log_writer );
+            SurfacingUtil.log( "Distinct domains stored                        : "
+                    + parser.getDomainsStoredSet().size(), log_writer );
             System.out.println( "Domains ignored due to individual score cutoffs: "
                     + parser.getDomainsIgnoredDueToIndividualScoreCutoff() );
-            log( "Domains ignored due to individual score cutoffs: "
-                         + parser.getDomainsIgnoredDueToIndividualScoreCutoff(),
-                 log_writer );
-            System.out.println( "Domains ignored due to E-value                 : "
-                    + parser.getDomainsIgnoredDueToEval() );
-            log( "Domains ignored due to E-value                 : " + parser.getDomainsIgnoredDueToEval(), log_writer );
+            SurfacingUtil.log( "Domains ignored due to individual score cutoffs: "
+                    + parser.getDomainsIgnoredDueToIndividualScoreCutoff(),
+                    log_writer );
+            System.out.println( "Domains ignored due to FS E-value              : "
+                    + parser.getDomainsIgnoredDueToFsEval() );
+            SurfacingUtil.log( "Domains ignored due to FS E-value              : "
+                    + parser.getDomainsIgnoredDueToFsEval(),
+                    log_writer );
+            System.out.println( "Domains ignored due to iE-value                : "
+                    + parser.getDomainsIgnoredDueToIEval() );
+            SurfacingUtil.log( "Domains ignored due to iE-value                : "
+                    + parser.getDomainsIgnoredDueToIEval(),
+                    log_writer );
             System.out.println( "Domains ignored due to DUF designation         : "
                     + parser.getDomainsIgnoredDueToDuf() );
-            log( "Domains ignored due to DUF designation         : " + parser.getDomainsIgnoredDueToDuf(), log_writer );
+            SurfacingUtil
+            .log( "Domains ignored due to DUF designation         : " + parser.getDomainsIgnoredDueToDuf(),
+                  log_writer );
             if ( ignore_virus_like_ids ) {
                 System.out.println( "Domains ignored due virus like ids             : "
                         + parser.getDomainsIgnoredDueToVirusLikeIds() );
-                log( "Domains ignored due virus like ids             : " + parser.getDomainsIgnoredDueToVirusLikeIds(),
-                     log_writer );
+                SurfacingUtil.log( "Domains ignored due virus like ids             : "
+                        + parser.getDomainsIgnoredDueToVirusLikeIds(),
+                        log_writer );
             }
             System.out.println( "Domains ignored due negative domain filter     : "
                     + parser.getDomainsIgnoredDueToNegativeDomainFilter() );
-            log( "Domains ignored due negative domain filter     : "
-                         + parser.getDomainsIgnoredDueToNegativeDomainFilter(),
-                 log_writer );
+            SurfacingUtil.log( "Domains ignored due negative domain filter     : "
+                    + parser.getDomainsIgnoredDueToNegativeDomainFilter(),
+                    log_writer );
             System.out.println( "Domains ignored due to overlap                 : "
                     + parser.getDomainsIgnoredDueToOverlap() );
-            log( "Domains ignored due to overlap                 : " + parser.getDomainsIgnoredDueToOverlap(),
-                 log_writer );
+            SurfacingUtil.log( "Domains ignored due to overlap                 : "
+                    + parser.getDomainsIgnoredDueToOverlap(),
+                    log_writer );
             if ( negative_filter_file != null ) {
                 System.out.println( "Proteins ignored due to negative filter        : "
                         + parser.getProteinsIgnoredDueToFilter() );
-                log( "Proteins ignored due to negative filter        : " + parser.getProteinsIgnoredDueToFilter(),
-                     log_writer );
+                SurfacingUtil.log( "Proteins ignored due to negative filter        : "
+                        + parser.getProteinsIgnoredDueToFilter(),
+                        log_writer );
             }
             if ( positive_filter_file != null ) {
                 System.out.println( "Proteins ignored due to positive filter        : "
                         + parser.getProteinsIgnoredDueToFilter() );
-                log( "Proteins ignored due to positive filter        : " + parser.getProteinsIgnoredDueToFilter(),
-                     log_writer );
+                SurfacingUtil.log( "Proteins ignored due to positive filter        : "
+                        + parser.getProteinsIgnoredDueToFilter(),
+                        log_writer );
             }
             if ( da_analysis ) {
                 System.out.println( "Distinct domain architectures stored           : " + distinct_das );
-                log( "Distinct domain architectures stored           : " + distinct_das, log_writer );
+                SurfacingUtil.log( "Distinct domain architectures stored           : " + distinct_das, log_writer );
             }
             System.out.println( "Time for processing                            : " + parser.getTime() + "ms" );
-            log( "", log_writer );
+            SurfacingUtil.log( "", log_writer );
             try {
                 int count = 0;
                 for( final Protein protein : protein_list ) {
                     dc_data_writer.write( SurfacingUtil.proteinToDomainCombinations( protein, count + "", "\t" )
-                            .toString() );
+                                          .toString() );
                     ++count;
                     for( final Domain d : protein.getProteinDomains() ) {
                         final String d_str = d.getDomainId().toString();
@@ -1867,23 +1650,28 @@ public class surfacing {
                                                         domains_which_are_sometimes_single_sometimes_not,
                                                         domains_which_never_single,
                                                         domains_per_potein_stats_writer );
-            domain_lengths_table.addLengths( protein_list );
+            if ( domain_length_analysis ) {
+                domain_lengths_table.addLengths( protein_list );
+            }
             if ( !da_analysis ) {
                 gwcd_list.add( BasicGenomeWideCombinableDomains
-                        .createInstance( protein_list,
-                                         ignore_combination_with_same,
-                                         new BasicSpecies( input_file_properties[ i ][ 1 ] ),
-                                         domain_id_to_go_ids_map,
-                                         dc_type,
-                                         protein_length_stats_by_dc,
-                                         domain_number_stats_by_dc ) );
+                               .createInstance( protein_list,
+                                                ignore_combination_with_same,
+                                                new BasicSpecies( input_file_properties[ i ][ 1 ] ),
+                                                domain_id_to_go_ids_map,
+                                                dc_type,
+                                                protein_length_stats_by_dc,
+                                                domain_number_stats_by_dc ) );
                 if ( gwcd_list.get( i ).getSize() > 0 ) {
-                    SurfacingUtil.writeDomainCombinationsCountsFile( input_file_properties,
-                                                                     out_dir,
-                                                                     per_genome_domain_promiscuity_statistics_writer,
-                                                                     gwcd_list.get( i ),
-                                                                     i,
-                                                                     dc_sort_order );
+                    if ( output_binary_domain_combinationsfor_counts ) {
+                        SurfacingUtil
+                        .writeDomainCombinationsCountsFile( input_file_properties,
+                                                            out_dir,
+                                                            per_genome_domain_promiscuity_statistics_writer,
+                                                            gwcd_list.get( i ),
+                                                            i,
+                                                            dc_sort_order );
+                    }
                     if ( output_binary_domain_combinationsfor_graph_analysis ) {
                         SurfacingUtil.writeBinaryDomainCombinationsFileForGraphAnalysis( input_file_properties,
                                                                                          out_dir,
@@ -1930,9 +1718,9 @@ public class surfacing {
                                                              distinct_domain_architecuture_counts,
                                                              10,
                                                              new File( out_dir.toString() + "/" + output_file
-                                                                     + "_DA_counts.txt" ),
-                                                             new File( out_dir.toString() + "/" + output_file
-                                                                     + "_unique_DAs.txt" ) );
+                                                                       + "_DA_counts.txt" ),
+                                                                       new File( out_dir.toString() + "/" + output_file
+                                                                                 + "_unique_DAs.txt" ) );
             distinct_domain_architecutures_per_genome.clear();
             distinct_domain_architecuture_counts.clear();
             System.gc();
@@ -1944,8 +1732,10 @@ public class surfacing {
             domains_per_potein_stats_writer.write( "\t" );
             domains_per_potein_stats_writer.write( all_genomes_domains_per_potein_stats.sampleStandardDeviation() + "" );
             domains_per_potein_stats_writer.write( "\t" );
-            domains_per_potein_stats_writer.write( all_genomes_domains_per_potein_stats.median() + "" );
-            domains_per_potein_stats_writer.write( "\t" );
+            if ( all_genomes_domains_per_potein_stats.getN() <= 300 ) {
+                domains_per_potein_stats_writer.write( all_genomes_domains_per_potein_stats.median() + "" );
+                domains_per_potein_stats_writer.write( "\t" );
+            }
             domains_per_potein_stats_writer.write( all_genomes_domains_per_potein_stats.getN() + "" );
             domains_per_potein_stats_writer.write( "\t" );
             domains_per_potein_stats_writer.write( all_genomes_domains_per_potein_stats.getMin() + "" );
@@ -1953,15 +1743,16 @@ public class surfacing {
             domains_per_potein_stats_writer.write( all_genomes_domains_per_potein_stats.getMax() + "" );
             domains_per_potein_stats_writer.write( "\n" );
             domains_per_potein_stats_writer.close();
-            printOutPercentageOfMultidomainProteins( all_genomes_domains_per_potein_histo, log_writer );
+            all_genomes_domains_per_potein_stats = null;
+            SurfacingUtil.printOutPercentageOfMultidomainProteins( all_genomes_domains_per_potein_histo, log_writer );
             ForesterUtil.map2file( new File( out_dir + ForesterUtil.FILE_SEPARATOR + output_file
-                    + "_all_genomes_domains_per_potein_histo.txt" ), all_genomes_domains_per_potein_histo, "\t", "\n" );
+                                             + "_all_genomes_domains_per_potein_histo.txt" ), all_genomes_domains_per_potein_histo, "\t", "\n" );
             ForesterUtil.collection2file( new File( out_dir + ForesterUtil.FILE_SEPARATOR + output_file
-                    + "_domains_always_single_.txt" ), domains_which_are_always_single, "\n" );
+                                                    + "_domains_always_single_.txt" ), domains_which_are_always_single, "\n" );
             ForesterUtil.collection2file( new File( out_dir + ForesterUtil.FILE_SEPARATOR + output_file
-                    + "_domains_single_or_combined.txt" ), domains_which_are_sometimes_single_sometimes_not, "\n" );
+                                                    + "_domains_single_or_combined.txt" ), domains_which_are_sometimes_single_sometimes_not, "\n" );
             ForesterUtil.collection2file( new File( out_dir + ForesterUtil.FILE_SEPARATOR + output_file
-                    + "_domains_always_combined.txt" ), domains_which_never_single, "\n" );
+                                                    + "_domains_always_combined.txt" ), domains_which_never_single, "\n" );
             ForesterUtil.programMessage( PRG_NAME,
                                          "Average of proteins with a least one domain assigned: "
                                                  + ( 100 * protein_coverage_stats.arithmeticMean() ) + "% (+/-"
@@ -1969,10 +1760,15 @@ public class surfacing {
             ForesterUtil.programMessage( PRG_NAME, "Range of proteins with a least one domain assigned: "
                     + ( 100 * protein_coverage_stats.getMin() ) + "%-" + ( 100 * protein_coverage_stats.getMax() )
                     + "%" );
-            log( "Average of prot with a least one dom assigned  : " + ( 100 * protein_coverage_stats.arithmeticMean() )
-                    + "% (+/-" + ( 100 * protein_coverage_stats.sampleStandardDeviation() ) + "%)", log_writer );
-            log( "Range of prot with a least one dom assigned    : " + ( 100 * protein_coverage_stats.getMin() ) + "%-"
-                    + ( 100 * protein_coverage_stats.getMax() ) + "%", log_writer );
+            SurfacingUtil.log( "Average of prot with a least one dom assigned  : "
+                    + ( 100 * protein_coverage_stats.arithmeticMean() ) + "% (+/-"
+                    + ( 100 * protein_coverage_stats.sampleStandardDeviation() ) + "%)",
+                    log_writer );
+            SurfacingUtil.log( "Range of prot with a least one dom assigned    : "
+                    + ( 100 * protein_coverage_stats.getMin() ) + "%-"
+                    + ( 100 * protein_coverage_stats.getMax() ) + "%",
+                    log_writer );
+            protein_coverage_stats = null;
         }
         catch ( final IOException e2 ) {
             ForesterUtil.fatalError( surfacing.PRG_NAME, e2.getLocalizedMessage() );
@@ -1995,7 +1791,7 @@ public class surfacing {
         catch ( final IOException e2 ) {
             ForesterUtil.fatalError( surfacing.PRG_NAME, e2.getLocalizedMessage() );
         }
-        if ( PERFORM_DOMAIN_LENGTH_ANALYSIS ) {
+        if ( domain_length_analysis ) {
             try {
                 SurfacingUtil.executeDomainLengthAnalysis( input_file_properties,
                                                            number_of_genomes,
@@ -2009,12 +1805,14 @@ public class surfacing {
             ForesterUtil.programMessage( PRG_NAME, "Wrote domain length data to: " + domain_lengths_analysis_outfile );
             System.out.println();
         }
+        domain_lengths_table = null;
         final long analysis_start_time = new Date().getTime();
         PairwiseDomainSimilarityCalculator pw_calc = null;
-        // double[] values_for_all_scores_histogram = null;
         final DomainSimilarityCalculator calc = new BasicDomainSimilarityCalculator( domain_similarity_sort_field,
                                                                                      sort_by_species_count_first,
-                                                                                     number_of_genomes == 2 );
+                                                                                     number_of_genomes == 2,
+                                                                                     CALC_SIMILARITY_SCORES,
+                                                                                     true );
         switch ( scoring ) {
             case COMBINATIONS:
                 pw_calc = new CombinationsBasedPairwiseDomainSimilarityCalculator();
@@ -2048,7 +1846,7 @@ public class surfacing {
                     my_outfile = my_outfile.substring( 0, my_outfile.length() - 5 );
                 }
                 split_writers = new HashMap<Character, Writer>();
-                createSplitWriters( out_dir, my_outfile, split_writers );
+                SurfacingUtil.createSplitWriters( out_dir, my_outfile, split_writers );
             }
             else if ( !my_outfile.endsWith( ".html" ) ) {
                 my_outfile += ".html";
@@ -2064,24 +1862,28 @@ public class surfacing {
             html_desc.append( "<tr><td>Sum of all distinct binary combinations:</td><td>"
                     + all_bin_domain_combinations_encountered.size() + "</td></tr>" + nl );
             html_desc.append( "<tr><td>Sum of all distinct domains:</td><td>" + all_domains_encountered.size()
-                    + "</td></tr>" + nl );
+                              + "</td></tr>" + nl );
             html_desc.append( "<tr><td>Analysis date/time:</td><td>"
                     + new java.text.SimpleDateFormat( "yyyy.MM.dd HH:mm:ss" ).format( new java.util.Date() )
                     + "</td></tr>" + nl );
             html_desc.append( "</table>" + nl );
-            final DescriptiveStatistics pw_stats = SurfacingUtil
-                    .writeDomainSimilaritiesToFile( html_desc,
-                                                    new StringBuilder( number_of_genomes + " genomes" ),
-                                                    writer,
-                                                    split_writers,
-                                                    similarities,
-                                                    number_of_genomes == 2,
-                                                    species_order,
-                                                    domain_similarity_print_option,
-                                                    scoring,
-                                                    true,
-                                                    tax_code_to_id_map,
-                                                    false );
+            final Writer simple_tab_writer = new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR
+                                                                                 + my_outfile + ".tsv" ) );
+            SurfacingUtil.writeDomainSimilaritiesToFile( html_desc,
+                                                         new StringBuilder( number_of_genomes + " genomes" ),
+                                                         simple_tab_writer,
+                                                         writer,
+                                                         split_writers,
+                                                         similarities,
+                                                         number_of_genomes == 2,
+                                                         species_order,
+                                                         domain_similarity_print_option,
+                                                         scoring,
+                                                         true,
+                                                         tax_code_to_id_map,
+                                                         intree_0_orig,
+                                                         positive_filter_file != null ? filter : null );
+            simple_tab_writer.close();
             ForesterUtil.programMessage( surfacing.PRG_NAME, "Wrote main output (includes domain similarities) to: \""
                     + ( out_dir == null ? my_outfile : out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile ) + "\"" );
         }
@@ -2118,7 +1920,9 @@ public class surfacing {
                                              surfacing.PRG_NAME,
                                              out_dir,
                                              write_pwc_files,
-                                             tax_code_to_id_map );
+                                             tax_code_to_id_map,
+                                             CALC_SIMILARITY_SCORES,
+                                             intree_0_orig );
             String matrix_output_file = new String( output_file.toString() );
             if ( matrix_output_file.indexOf( '.' ) > 1 ) {
                 matrix_output_file = matrix_output_file.substring( 0, matrix_output_file.indexOf( '.' ) );
@@ -2128,23 +1932,23 @@ public class surfacing {
                 output_file = new File( out_dir + ForesterUtil.FILE_SEPARATOR + output_file );
             }
             SurfacingUtil.writeMatrixToFile( new File( matrix_output_file
-                    + surfacing.MATRIX_MEAN_SCORE_BASED_GENOME_DISTANCE_SUFFIX ), pwgc.getDomainDistanceScoresMeans() );
+                                                       + surfacing.MATRIX_MEAN_SCORE_BASED_GENOME_DISTANCE_SUFFIX ), pwgc.getDomainDistanceScoresMeans() );
             SurfacingUtil
-                    .writeMatrixToFile( new File( matrix_output_file
-                                                + surfacing.MATRIX_SHARED_BIN_COMBINATIONS_BASED_GENOME_DISTANCE_SUFFIX ),
-                                        pwgc.getSharedBinaryCombinationsBasedDistances() );
+            .writeMatrixToFile( new File( matrix_output_file
+                                          + surfacing.MATRIX_SHARED_BIN_COMBINATIONS_BASED_GENOME_DISTANCE_SUFFIX ),
+                                          pwgc.getSharedBinaryCombinationsBasedDistances() );
             SurfacingUtil.writeMatrixToFile( new File( matrix_output_file
-                                                     + surfacing.MATRIX_SHARED_DOMAINS_BASED_GENOME_DISTANCE_SUFFIX ),
-                                             pwgc.getSharedDomainsBasedDistances() );
+                                                       + surfacing.MATRIX_SHARED_DOMAINS_BASED_GENOME_DISTANCE_SUFFIX ),
+                                                       pwgc.getSharedDomainsBasedDistances() );
             final Phylogeny nj_gd = SurfacingUtil.createNjTreeBasedOnMatrixToFile( new File( matrix_output_file
-                    + surfacing.NJ_TREE_MEAN_SCORE_BASED_GENOME_DISTANCE_SUFFIX ), pwgc.getDomainDistanceScoresMeans()
-                    .get( 0 ) );
+                                                                                             + surfacing.NJ_TREE_MEAN_SCORE_BASED_GENOME_DISTANCE_SUFFIX ), pwgc.getDomainDistanceScoresMeans()
+                                                                                             .get( 0 ) );
             final Phylogeny nj_bc = SurfacingUtil.createNjTreeBasedOnMatrixToFile( new File( matrix_output_file
-                    + surfacing.NJ_TREE_SHARED_BIN_COMBINATIONS_BASED_GENOME_DISTANCE_SUFFIX ), pwgc
-                    .getSharedBinaryCombinationsBasedDistances().get( 0 ) );
+                                                                                             + surfacing.NJ_TREE_SHARED_BIN_COMBINATIONS_BASED_GENOME_DISTANCE_SUFFIX ), pwgc
+                                                                                             .getSharedBinaryCombinationsBasedDistances().get( 0 ) );
             final Phylogeny nj_d = SurfacingUtil.createNjTreeBasedOnMatrixToFile( new File( matrix_output_file
-                    + surfacing.NJ_TREE_SHARED_DOMAINS_BASED_GENOME_DISTANCE_SUFFIX ), pwgc
-                    .getSharedDomainsBasedDistances().get( 0 ) );
+                                                                                            + surfacing.NJ_TREE_SHARED_DOMAINS_BASED_GENOME_DISTANCE_SUFFIX ), pwgc
+                                                                                            .getSharedDomainsBasedDistances().get( 0 ) );
             inferred_trees = new ArrayList<Phylogeny>();
             inferred_trees.add( nj_gd );
             inferred_trees.add( nj_bc );
@@ -2154,15 +1958,16 @@ public class surfacing {
             output_file = new File( out_dir + ForesterUtil.FILE_SEPARATOR + output_file );
         }
         if ( write_to_nexus ) {
-            writePresentToNexus( output_file, positive_filter_file, filter, gwcd_list );
+            SurfacingUtil.writePresentToNexus( output_file, positive_filter_file, filter, gwcd_list );
         }
         if ( ( ( intrees != null ) && ( intrees.length > 0 ) ) && ( number_of_genomes > 2 ) ) {
-            final StringBuilder parameters_sb = createParametersAsString( ignore_dufs,
-                                                                          e_value_max,
-                                                                          max_allowed_overlap,
-                                                                          no_engulfing_overlaps,
-                                                                          cutoff_scores_file,
-                                                                          dc_type );
+            final StringBuilder parameters_sb = SurfacingUtil.createParametersAsString( ignore_dufs,
+                                                                                        ie_value_max,
+                                                                                        fs_e_value_max,
+                                                                                        max_allowed_overlap,
+                                                                                        no_engulfing_overlaps,
+                                                                                        cutoff_scores_file,
+                                                                                        dc_type );
             String s = "_";
             if ( radomize_fitch_parsimony ) {
                 s += random_number_seed_for_fitch_parsimony + "_";
@@ -2184,17 +1989,18 @@ public class surfacing {
                                                         parameters_sb.toString(),
                                                         domain_id_to_secondary_features_maps,
                                                         positive_filter_file == null ? null : filter,
-                                                        output_binary_domain_combinationsfor_graph_analysis,
-                                                        all_bin_domain_combinations_gained_fitch,
-                                                        all_bin_domain_combinations_lost_fitch,
-                                                        dc_type,
-                                                        protein_length_stats_by_dc,
-                                                        domain_number_stats_by_dc,
-                                                        domain_length_stats_by_domain,
-                                                        tax_code_to_id_map,
-                                                        write_to_nexus,
-                                                        use_last_in_fitch_parsimony );
-                // Listing of all domain combinations gained is only done if only one input tree is used. 
+                                                                output_binary_domain_combinationsfor_graph_analysis,
+                                                                all_bin_domain_combinations_gained_fitch,
+                                                                all_bin_domain_combinations_lost_fitch,
+                                                                dc_type,
+                                                                protein_length_stats_by_dc,
+                                                                domain_number_stats_by_dc,
+                                                                domain_length_stats_by_domain,
+                                                                tax_code_to_id_map,
+                                                                write_to_nexus,
+                                                                use_last_in_fitch_parsimony,
+                                                                perform_dc_fich );
+                // Listing of all domain combinations gained is only done if only one input tree is used.
                 if ( ( domain_id_to_secondary_features_maps != null )
                         && ( domain_id_to_secondary_features_maps.length > 0 ) ) {
                     int j = 0;
@@ -2203,14 +2009,14 @@ public class surfacing {
                         final DomainParsimonyCalculator secondary_features_parsimony = DomainParsimonyCalculator
                                 .createInstance( intree, gwcd_list, domain_id_to_secondary_features_map );
                         SurfacingUtil
-                                .executeParsimonyAnalysisForSecondaryFeatures( outfile_name
-                                                                                       + "_"
-                                                                                       + secondary_features_map_files[ j++ ],
-                                                                               secondary_features_parsimony,
-                                                                               intree,
-                                                                               parameters_sb.toString(),
-                                                                               mapping_results_map,
-                                                                               use_last_in_fitch_parsimony );
+                        .executeParsimonyAnalysisForSecondaryFeatures( outfile_name
+                                                                       + "_"
+                                                                       + secondary_features_map_files[ j++ ],
+                                                                       secondary_features_parsimony,
+                                                                       intree,
+                                                                       parameters_sb.toString(),
+                                                                       mapping_results_map,
+                                                                       use_last_in_fitch_parsimony );
                         if ( i == 0 ) {
                             System.out.println();
                             System.out.println( "Mapping to secondary features:" );
@@ -2236,31 +2042,33 @@ public class surfacing {
             } // for( final Phylogeny intree : intrees ) {
         }
         if ( plus_minus_analysis_high_copy_base_species.size() > 0 ) {
-            executePlusMinusAnalysis( output_file,
-                                      plus_minus_analysis_high_copy_base_species,
-                                      plus_minus_analysis_high_copy_target_species,
-                                      plus_minus_analysis_high_low_copy_species,
-                                      gwcd_list,
-                                      protein_lists_per_species,
-                                      domain_id_to_go_ids_map,
-                                      go_id_to_term_map,
-                                      plus_minus_analysis_numbers );
+            SurfacingUtil.executePlusMinusAnalysis( output_file,
+                                                    plus_minus_analysis_high_copy_base_species,
+                                                    plus_minus_analysis_high_copy_target_species,
+                                                    plus_minus_analysis_high_low_copy_species,
+                                                    gwcd_list,
+                                                    protein_lists_per_species,
+                                                    domain_id_to_go_ids_map,
+                                                    go_id_to_term_map,
+                                                    plus_minus_analysis_numbers );
         }
         if ( output_protein_lists_for_all_domains ) {
-            writeProteinListsForAllSpecies( out_dir,
-                                            protein_lists_per_species,
-                                            gwcd_list,
-                                            output_list_of_all_proteins_per_domain_e_value_max );
+            SurfacingUtil.writeProteinListsForAllSpecies( out_dir,
+                                                          protein_lists_per_species,
+                                                          gwcd_list,
+                                                          output_list_of_all_proteins_per_domain_e_value_max,
+                                                          positive_filter_file != null ? filter : null );
         }
         gwcd_list = null;
         if ( all_bin_domain_combinations_gained_fitch != null ) {
             try {
-                executeFitchGainsAnalysis( new File( output_file
-                                                   + surfacing.OUTPUT_DOMAIN_COMBINATIONS_GAINED_MORE_THAN_ONCE_ANALYSIS_SUFFIX ),
-                                           all_bin_domain_combinations_gained_fitch,
-                                           all_domains_encountered.size(),
-                                           all_bin_domain_combinations_encountered,
-                                           true );
+                SurfacingUtil
+                .executeFitchGainsAnalysis( new File( output_file
+                                                      + surfacing.OUTPUT_DOMAIN_COMBINATIONS_GAINED_MORE_THAN_ONCE_ANALYSIS_SUFFIX ),
+                                                      all_bin_domain_combinations_gained_fitch,
+                                                      all_domains_encountered.size(),
+                                                      all_bin_domain_combinations_encountered,
+                                                      true );
             }
             catch ( final IOException e ) {
                 ForesterUtil.fatalError( PRG_NAME, e.getLocalizedMessage() );
@@ -2268,12 +2076,13 @@ public class surfacing {
         }
         if ( all_bin_domain_combinations_lost_fitch != null ) {
             try {
-                executeFitchGainsAnalysis( new File( output_file
-                                                   + surfacing.OUTPUT_DOMAIN_COMBINATIONS_LOST_MORE_THAN_ONCE_ANALYSIS_SUFFIX ),
-                                           all_bin_domain_combinations_lost_fitch,
-                                           all_domains_encountered.size(),
-                                           all_bin_domain_combinations_encountered,
-                                           false );
+                SurfacingUtil
+                .executeFitchGainsAnalysis( new File( output_file
+                                                      + surfacing.OUTPUT_DOMAIN_COMBINATIONS_LOST_MORE_THAN_ONCE_ANALYSIS_SUFFIX ),
+                                                      all_bin_domain_combinations_lost_fitch,
+                                                      all_domains_encountered.size(),
+                                                      all_bin_domain_combinations_encountered,
+                                                      false );
             }
             catch ( final IOException e ) {
                 ForesterUtil.fatalError( PRG_NAME, e.getLocalizedMessage() );
@@ -2283,7 +2092,7 @@ public class surfacing {
         final long free_memory = rt.freeMemory() / 1000000;
         final long total_memory = rt.totalMemory() / 1000000;
         ForesterUtil.programMessage( PRG_NAME, "Time for analysis : " + ( new Date().getTime() - analysis_start_time )
-                + "ms" );
+                                     + "ms" );
         ForesterUtil.programMessage( PRG_NAME, "Total running time: " + ( new Date().getTime() - start_time ) + "ms " );
         ForesterUtil.programMessage( PRG_NAME, "Free memory       : " + free_memory + "MB, total memory: "
                 + total_memory + "MB" );
@@ -2293,161 +2102,38 @@ public class surfacing {
         System.out.println();
     }
 
-    private static void createSplitWriters( final File out_dir,
-                                            final String my_outfile,
-                                            final Map<Character, Writer> split_writers ) throws IOException {
-        split_writers.put( 'a', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_A.html" ) ) );
-        split_writers.put( 'b', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_B.html" ) ) );
-        split_writers.put( 'c', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_C.html" ) ) );
-        split_writers.put( 'd', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_D.html" ) ) );
-        split_writers.put( 'e', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_E.html" ) ) );
-        split_writers.put( 'f', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_F.html" ) ) );
-        split_writers.put( 'g', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_G.html" ) ) );
-        split_writers.put( 'h', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_H.html" ) ) );
-        split_writers.put( 'i', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_I.html" ) ) );
-        split_writers.put( 'j', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_J.html" ) ) );
-        split_writers.put( 'k', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_K.html" ) ) );
-        split_writers.put( 'l', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_L.html" ) ) );
-        split_writers.put( 'm', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_M.html" ) ) );
-        split_writers.put( 'n', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_N.html" ) ) );
-        split_writers.put( 'o', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_O.html" ) ) );
-        split_writers.put( 'p', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_P.html" ) ) );
-        split_writers.put( 'q', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_Q.html" ) ) );
-        split_writers.put( 'r', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_R.html" ) ) );
-        split_writers.put( 's', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_S.html" ) ) );
-        split_writers.put( 't', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_T.html" ) ) );
-        split_writers.put( 'u', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_U.html" ) ) );
-        split_writers.put( 'v', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_V.html" ) ) );
-        split_writers.put( 'w', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_W.html" ) ) );
-        split_writers.put( 'x', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_X.html" ) ) );
-        split_writers.put( 'y', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_Y.html" ) ) );
-        split_writers.put( 'z', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_Z.html" ) ) );
-        split_writers.put( '0', new BufferedWriter( new FileWriter( out_dir + ForesterUtil.FILE_SEPARATOR + my_outfile
-                + "_domains_0.html" ) ) );
-    }
-
-    private static void printOutPercentageOfMultidomainProteins( final SortedMap<Integer, Integer> all_genomes_domains_per_potein_histo,
-                                                                 final Writer log_writer ) {
-        int sum = 0;
-        for( final Entry<Integer, Integer> entry : all_genomes_domains_per_potein_histo.entrySet() ) {
-            sum += entry.getValue();
-        }
-        final double percentage = ( 100.0 * ( sum - all_genomes_domains_per_potein_histo.get( 1 ) ) ) / sum;
-        ForesterUtil.programMessage( PRG_NAME, "Percentage of multidomain proteins: " + percentage + "%" );
-        log( "Percentage of multidomain proteins:            : " + percentage + "%", log_writer );
-    }
-
-    private static void preparePhylogenyForParsimonyAnalyses( final Phylogeny intree,
-                                                              final String[][] input_file_properties ) {
-        final String[] genomes = new String[ input_file_properties.length ];
-        for( int i = 0; i < input_file_properties.length; ++i ) {
-            if ( intree.getNodes( input_file_properties[ i ][ 1 ] ).size() > 1 ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "node named [" + input_file_properties[ i ][ 1 ]
-                        + "] is not unique in input tree " + intree.getName() );
-            }
-            genomes[ i ] = input_file_properties[ i ][ 1 ];
-        }
-        //
-        final PhylogenyNodeIterator it = intree.iteratorPostorder();
-        while ( it.hasNext() ) {
-            final PhylogenyNode n = it.next();
-            if ( ForesterUtil.isEmpty( n.getName() ) ) {
-                if ( n.getNodeData().isHasTaxonomy()
-                        && !ForesterUtil.isEmpty( n.getNodeData().getTaxonomy().getTaxonomyCode() ) ) {
-                    n.setName( n.getNodeData().getTaxonomy().getTaxonomyCode() );
-                }
-                else if ( n.getNodeData().isHasTaxonomy()
-                        && !ForesterUtil.isEmpty( n.getNodeData().getTaxonomy().getScientificName() ) ) {
-                    n.setName( n.getNodeData().getTaxonomy().getScientificName() );
-                }
-                else if ( n.getNodeData().isHasTaxonomy()
-                        && !ForesterUtil.isEmpty( n.getNodeData().getTaxonomy().getCommonName() ) ) {
-                    n.setName( n.getNodeData().getTaxonomy().getCommonName() );
-                }
-                else {
-                    ForesterUtil
-                            .fatalError( surfacing.PRG_NAME,
-                                         "node with no name, scientific name, common name, or taxonomy code present" );
-                }
-            }
-        }
-        //
-        final List<String> igns = PhylogenyMethods.deleteExternalNodesPositiveSelection( genomes, intree );
-        if ( igns.size() > 0 ) {
-            System.out.println( "Not using the following " + igns.size() + " nodes:" );
-            for( int i = 0; i < igns.size(); ++i ) {
-                System.out.println( " " + i + ": " + igns.get( i ) );
-            }
-            System.out.println( "--" );
-        }
-        for( final String[] input_file_propertie : input_file_properties ) {
-            try {
-                intree.getNode( input_file_propertie[ 1 ] );
-            }
-            catch ( final IllegalArgumentException e ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "node named [" + input_file_propertie[ 1 ]
-                        + "] not present/not unique in input tree" );
-            }
-        }
-    }
-
     private static void printHelp() {
         System.out.println();
         System.out.println( "Usage:" );
         System.out.println();
         System.out.println( "% java -Xms256m -Xmx512m -cp forester.jar org.forester.applications." + surfacing.PRG_NAME
-                + " [options] <phylogen(y|ies) infile> [external node name 1] [name 2] ... [name n]" );
+                            + " [options] <phylogen(y|ies) infile> [external node name 1] [name 2] ... [name n]" );
         System.out.println();
         System.out.println( " Note: This software might need a significant amount of memory (heap space);" );
         System.out
-                .println( "       hence use \"-Xms128m -Xmx512m\" (or more) to prevent a \"java.lang.OutOfMemoryError\"." );
+        .println( "       hence use \"-Xms128m -Xmx512m\" (or more) to prevent a \"java.lang.OutOfMemoryError\"." );
         System.out.println();
         System.out.println( " Options: " );
         System.out.println( surfacing.DETAILEDNESS_OPTION + ": level of detail for similarities output file (default:"
                 + DETAILEDNESS_DEFAULT + ")" );
         System.out.println( surfacing.IGNORE_COMBINATION_WITH_SAME_OPTION
-                + ": to ignore combinations with self (default: not to ignore)" );
+                            + ": to ignore combinations with self (default: not to ignore)" );
         System.out
-                .println( surfacing.IGNORE_DOMAINS_WITHOUT_COMBINATIONS_IN_ALL_SPECIES_OPTION
-                        + ": to ignore domains without combinations in any species (for similarity calc purposes, not for parsimony analyses) (default: not to ignore)" );
+        .println( surfacing.IGNORE_DOMAINS_WITHOUT_COMBINATIONS_IN_ALL_SPECIES_OPTION
+                  + ": to ignore domains without combinations in any species (for similarity calc purposes, not for parsimony analyses) (default: not to ignore)" );
         System.out
-                .println( surfacing.IGNORE_DOMAINS_SPECIFIC_TO_ONE_SPECIES_OPTION
-                        + ": to ignore domains specific to one species (for similarity calc purposes, not for parsimony analyses) (default: not to ignore)" );
+        .println( surfacing.IGNORE_DOMAINS_SPECIFIC_TO_ONE_SPECIES_OPTION
+                  + ": to ignore domains specific to one species (for similarity calc purposes, not for parsimony analyses) (default: not to ignore)" );
         System.out.println( surfacing.NOT_IGNORE_DUFS_OPTION
-                + ": to _not_ ignore DUFs (domains with unknown function) (default: ignore DUFs)" );
+                            + ": to _not_ ignore DUFs (domains with unknown function) (default: ignore DUFs)" );
         System.out
-                .println( surfacing.IGNORE_VIRAL_IDS
-                        + ": to ignore domains with ids containing 'vir', 'retro', 'transpos', 'phage', or starting with 'rv' or 'gag_'" );
+        .println( surfacing.IGNORE_VIRAL_IDS
+                  + ": to ignore domains with ids containing 'vir', 'retro', 'transpos', 'phage', or starting with 'rv' or 'gag_'" );
         System.out.println( surfacing.DOMAIN_SIMILARITY_SORT_OPTION + ": sorting for similarities (default: "
                 + DOMAIN_SORT_FILD_DEFAULT + ")" );
         System.out.println( surfacing.OUTPUT_FILE_OPTION + ": name for (main) output file (mandatory)" );
-        System.out.println( surfacing.MAX_E_VALUE_OPTION + ": max (inclusive) E-value" );
+        System.out.println( surfacing.MAX_I_E_VALUE_OPTION + ": max (inclusive) iE-value" );
+        System.out.println( surfacing.MAX_FS_E_VALUE_OPTION + ": max (inclusive) FS E-value" );
         System.out.println( surfacing.MAX_ALLOWED_OVERLAP_OPTION + ": maximal allowed domain overlap" );
         System.out.println( surfacing.NO_ENGULFING_OVERLAP_OPTION + ": to ignore engulfed lower confidence domains" );
         System.out.println( surfacing.SPECIES_MATRIX_OPTION + ": species matrix" );
@@ -2458,258 +2144,58 @@ public class surfacing {
                 + DOMAIN_SIMILARITY_PRINT_OPTION_DEFAULT + ")" );
         System.out.println( surfacing.CUTOFF_SCORE_FILE_OPTION + ": cutoff score file" );
         System.out.println( surfacing.DOMAIN_SIMILARITY_SORT_BY_SPECIES_COUNT_FIRST_OPTION
-                + ": sort by species count first" );
+                            + ": sort by species count first" );
         System.out.println( surfacing.OUTPUT_DIR_OPTION + ": output directory" );
         System.out.println( surfacing.PFAM_TO_GO_FILE_USE_OPTION + ": Pfam to GO mapping file" );
         System.out.println( surfacing.GO_OBO_FILE_USE_OPTION + ": GO terms file (OBO format)" );
         System.out.println( surfacing.GO_NAMESPACE_LIMIT_OPTION + ": limit GO term to one GO namespace" );
         System.out.println( surfacing.PAIRWISE_DOMAIN_COMPARISONS_OPTION
-                + "[=<suffix for pairwise comparison output files>]: to perform pairwise comparison based analyses" );
+                            + "[=<suffix for pairwise comparison output files>]: to perform pairwise comparison based analyses" );
         System.out.println( surfacing.INPUT_SPECIES_TREE_OPTION
-                + ": species tree, to perform (Dollo, Fitch) parismony analyses" );
+                            + ": species tree, to perform (Dollo, Fitch) parismony analyses" );
         System.out
-                .println( surfacing.INPUT_SPECIES_TREE_OPTION
-                        + "=<treefiles in phyloXML format, separated by #>: to infer domain/binary domain combination gains/losses on given species trees" );
+        .println( surfacing.INPUT_SPECIES_TREE_OPTION
+                  + "=<treefiles in phyloXML format, separated by #>: to infer domain/binary domain combination gains/losses on given species trees" );
         System.out.println( surfacing.FILTER_POSITIVE_OPTION
-                + "=<file>: to filter out proteins not containing at least one domain listed in <file>" );
+                            + "=<file>: to filter out proteins not containing at least one domain listed in <file>" );
         System.out.println( surfacing.FILTER_NEGATIVE_OPTION
-                + "=<file>: to filter out proteins containing at least one domain listed in <file>" );
+                            + "=<file>: to filter out proteins containing at least one domain listed in <file>" );
         System.out.println( surfacing.FILTER_NEGATIVE_DOMAINS_OPTION
-                + "=<file>: to filter out (ignore) domains listed in <file>" );
+                            + "=<file>: to filter out (ignore) domains listed in <file>" );
         System.out.println( surfacing.INPUT_GENOMES_FILE_OPTION + "=<file>: to read input files from <file>" );
         System.out
-                .println( surfacing.RANDOM_SEED_FOR_FITCH_PARSIMONY_OPTION
-                        + "=<seed>: seed for random number generator for Fitch Parsimony analysis (type: long, default: no randomization - given a choice, prefer absence" );
+        .println( surfacing.RANDOM_SEED_FOR_FITCH_PARSIMONY_OPTION
+                  + "=<seed>: seed for random number generator for Fitch Parsimony analysis (type: long, default: no randomization - given a choice, prefer absence" );
         System.out.println( surfacing.CONSIDER_DOMAIN_COMBINATION_DIRECTEDNESS
-                + ": to consider directedness in binary combinations: e.g. A-B != B-A" );
+                            + ": to consider directedness in binary combinations: e.g. A-B != B-A" );
         System.out.println( surfacing.CONSIDER_DOMAIN_COMBINATION_DIRECTEDNESS_AND_ADJACENCY
-                + ": to consider directedness and adjacency in binary combinations" );
+                            + ": to consider directedness and adjacency in binary combinations" );
         System.out
-                .println( surfacing.SEQ_EXTRACT_OPTION
-                        + "=<domain ids (Pfam names)>: to extract sequence names of sequences containing matching domains and/or domain-sequences (order N to C) (domain separator: '~', domain sequences speparator: '#', e.g. 'NACHT#BIR~CARD')" );
+        .println( surfacing.SEQ_EXTRACT_OPTION
+                  + "=<domain ids (Pfam names)>: to extract sequence names of sequences containing matching domains and/or domain-sequences (order N to C) (domain separator: '~', domain sequences speparator: '#', e.g. 'NACHT#BIR~CARD')" );
         System.out.println( surfacing.SECONDARY_FEATURES_PARSIMONY_MAP_FILE
-                + "=<file>: to perfom parsimony analysis on secondary features" );
+                            + "=<file>: to perfom parsimony analysis on secondary features" );
         System.out.println( surfacing.PLUS_MINUS_ANALYSIS_OPTION + "=<file>: to presence/absence genome analysis" );
+        System.out.println( surfacing.DOMAIN_COMBINITONS_COUNTS_OUTPUT_OPTION
+                            + ": to output binary domain counts (as individual files)" );
         System.out.println( surfacing.DOMAIN_COMBINITONS_OUTPUT_OPTION_FOR_GRAPH_ANALYSIS
-                + ": to output binary domain combinations for (downstream) graph analysis" );
+                            + ": to output binary domain combinations for (downstream) graph analysis" );
         System.out.println( surfacing.OUTPUT_LIST_OF_ALL_PROTEINS_OPTIONS + ": to output all proteins per domain" );
         System.out.println( surfacing.OUTPUT_LIST_OF_ALL_PROTEINS_PER_DOMAIN_E_VALUE_OPTION
-                + ": e value max per domain for output of all proteins per domain" );
+                            + ": e value max per domain for output of all proteins per domain" );
         System.out.println( surfacing.USE_LAST_IN_FITCH_OPTION + ": to use last in Fitch parsimony" );
         System.out.println( surfacing.WRITE_TO_NEXUS_OPTION + ": to output in Nexus format" );
+        System.out.println( PERFORM_DC_FITCH + ": to perform DC Fitch parsimony" );
         System.out.println( PERFORM_DC_REGAIN_PROTEINS_STATS_OPTION + ": to perform DC regain protein statistics" );
-        System.out.println( DA_ANALYSIS_OPTION + ": to do DA analysis" );
+        System.out.println( DA_ANALYSIS_OPTION + ": to perform DA analysis" );
+        System.out.println( PERFORM_DOMAIN_LENGTH_ANALYSIS_OPTION + ": to perform domain length analysis" );
         System.out.println();
-        System.out.println( "Example 1: java -Xms128m -Xmx512m -cp path/to/forester.jar"
-                + " org.forester.application.surfacing p2g=pfam2go_2012_02_07.txt -dufs -cos=Pfam_260_NC1"
-                + " -no_eo -mo=0 -genomes=eukaryotes.txt -out_dir=out -o=o "
-                + " -species_tree=tol.xml -obo=gene_ontology_2012_02_07.obo -pos_filter=f.txt -all_prot" );
         System.out.println();
-        System.out.println( "Example 2: java -Xms128m -Xmx512m -cp path/to/forester.jar"
-                + " org.forester.application.surfacing -detail=punctilious -o=TEST.html -pwc=TEST"
-                + " -cos=Pfam_ls_22_TC2 -p2g=pfam2go -obo=gene_ontology_edit.obo "
-                + "-dc_sort=dom -ignore_with_self -no_singles -e=0.001 -mo=1 -no_eo -genomes=eukaryotes.txt "
-                + "-ds_output=detailed_html -scoring=domains -sort=alpha " );
+        System.out
+        .println( "Example 1: surfacing -p2g=pfam2go.txt -obo=go.obo -species_tree=tol_156.xml -no_eo -ie=0.01 -dufs -genomes=genomes_all.txt -pos_filter=tf_1.txt -out_dir=_tf1 -o=tf1" );
+        System.out.println();
+        System.out
+        .println( "Example 2: surfacing -p2g=pfam2go.txt -obo=go.obo -species_tree=tol_156.xml -last -ignore_viral_ids -no_eo -ie=0.1 -dufs -genomes=genomes_all.txt -pos_filter=tf_1.txt -all_prot -all_prot_e=0.1 -out_dir=_tf1_e01_ape01 -o=tf1_e01_ape01" );
         System.out.println();
-    }
-
-    private static void processFilter( final File filter_file, final SortedSet<String> filter ) {
-        SortedSet<String> filter_str = null;
-        try {
-            filter_str = ForesterUtil.file2set( filter_file );
-        }
-        catch ( final IOException e ) {
-            ForesterUtil.fatalError( surfacing.PRG_NAME, e.getMessage() );
-        }
-        if ( filter_str != null ) {
-            for( final String string : filter_str ) {
-                filter.add( string );
-            }
-        }
-        if ( VERBOSE ) {
-            System.out.println( "Filter:" );
-            for( final String domainId : filter ) {
-                System.out.println( domainId );
-            }
-        }
-    }
-
-    private static String[][] processInputGenomesFile( final File input_genomes ) {
-        String[][] input_file_properties = null;
-        try {
-            input_file_properties = ForesterUtil.file22dArray( input_genomes );
-        }
-        catch ( final IOException e ) {
-            ForesterUtil.fatalError( surfacing.PRG_NAME,
-                                     "genomes files is to be in the following format \"<hmmpfam output file> <species>\": "
-                                             + e.getLocalizedMessage() );
-        }
-        final Set<String> specs = new HashSet<String>();
-        final Set<String> paths = new HashSet<String>();
-        for( int i = 0; i < input_file_properties.length; ++i ) {
-            if ( !PhyloXmlUtil.TAXOMONY_CODE_PATTERN.matcher( input_file_properties[ i ][ 1 ] ).matches() ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "illegal format for species code: "
-                        + input_file_properties[ i ][ 1 ] );
-            }
-            if ( specs.contains( input_file_properties[ i ][ 1 ] ) ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "species code " + input_file_properties[ i ][ 1 ]
-                        + " is not unique" );
-            }
-            specs.add( input_file_properties[ i ][ 1 ] );
-            if ( paths.contains( input_file_properties[ i ][ 0 ] ) ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "path " + input_file_properties[ i ][ 0 ]
-                        + " is not unique" );
-            }
-            paths.add( input_file_properties[ i ][ 0 ] );
-            final String error = ForesterUtil.isReadableFile( new File( input_file_properties[ i ][ 0 ] ) );
-            if ( !ForesterUtil.isEmpty( error ) ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, error );
-            }
-        }
-        return input_file_properties;
-    }
-
-    private static void processPlusMinusAnalysisOption( final CommandLineArguments cla,
-                                                        final List<String> high_copy_base,
-                                                        final List<String> high_copy_target,
-                                                        final List<String> low_copy,
-                                                        final List<Object> numbers ) {
-        if ( cla.isOptionSet( surfacing.PLUS_MINUS_ANALYSIS_OPTION ) ) {
-            if ( !cla.isOptionValueSet( surfacing.PLUS_MINUS_ANALYSIS_OPTION ) ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "no value for 'plus-minus' file: -"
-                        + surfacing.PLUS_MINUS_ANALYSIS_OPTION + "=<file>" );
-            }
-            final File plus_minus_file = new File( cla.getOptionValue( surfacing.PLUS_MINUS_ANALYSIS_OPTION ) );
-            final String msg = ForesterUtil.isReadableFile( plus_minus_file );
-            if ( !ForesterUtil.isEmpty( msg ) ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, "can not read from \"" + plus_minus_file + "\": " + msg );
-            }
-            processPlusMinusFile( plus_minus_file, high_copy_base, high_copy_target, low_copy, numbers );
-        }
-    }
-
-    // First numbers is minimal difference, second is factor.
-    private static void processPlusMinusFile( final File plus_minus_file,
-                                              final List<String> high_copy_base,
-                                              final List<String> high_copy_target,
-                                              final List<String> low_copy,
-                                              final List<Object> numbers ) {
-        Set<String> species_set = null;
-        int min_diff = PLUS_MINUS_ANALYSIS_MIN_DIFF_DEFAULT;
-        double factor = PLUS_MINUS_ANALYSIS_FACTOR_DEFAULT;
-        try {
-            species_set = ForesterUtil.file2set( plus_minus_file );
-        }
-        catch ( final IOException e ) {
-            ForesterUtil.fatalError( surfacing.PRG_NAME, e.getMessage() );
-        }
-        if ( species_set != null ) {
-            for( final String species : species_set ) {
-                final String species_trimmed = species.substring( 1 );
-                if ( species.startsWith( "+" ) ) {
-                    if ( low_copy.contains( species_trimmed ) ) {
-                        ForesterUtil.fatalError( surfacing.PRG_NAME,
-                                                 "species/genome names can not appear with both '+' and '-' suffix, as appears the case for: \""
-                                                         + species_trimmed + "\"" );
-                    }
-                    high_copy_base.add( species_trimmed );
-                }
-                else if ( species.startsWith( "*" ) ) {
-                    if ( low_copy.contains( species_trimmed ) ) {
-                        ForesterUtil.fatalError( surfacing.PRG_NAME,
-                                                 "species/genome names can not appear with both '*' and '-' suffix, as appears the case for: \""
-                                                         + species_trimmed + "\"" );
-                    }
-                    high_copy_target.add( species_trimmed );
-                }
-                else if ( species.startsWith( "-" ) ) {
-                    if ( high_copy_base.contains( species_trimmed ) || high_copy_target.contains( species_trimmed ) ) {
-                        ForesterUtil.fatalError( surfacing.PRG_NAME,
-                                                 "species/genome names can not appear with both '+' or '*' and '-' suffix, as appears the case for: \""
-                                                         + species_trimmed + "\"" );
-                    }
-                    low_copy.add( species_trimmed );
-                }
-                else if ( species.startsWith( "$D" ) ) {
-                    try {
-                        min_diff = Integer.parseInt( species.substring( 3 ) );
-                    }
-                    catch ( final NumberFormatException e ) {
-                        ForesterUtil.fatalError( surfacing.PRG_NAME,
-                                                 "could not parse integer value for minimal difference from: \""
-                                                         + species.substring( 3 ) + "\"" );
-                    }
-                }
-                else if ( species.startsWith( "$F" ) ) {
-                    try {
-                        factor = Double.parseDouble( species.substring( 3 ) );
-                    }
-                    catch ( final NumberFormatException e ) {
-                        ForesterUtil.fatalError( surfacing.PRG_NAME, "could not parse double value for factor from: \""
-                                + species.substring( 3 ) + "\"" );
-                    }
-                }
-                else if ( species.startsWith( "#" ) ) {
-                    // Comment, ignore.
-                }
-                else {
-                    ForesterUtil
-                            .fatalError( surfacing.PRG_NAME,
-                                         "species/genome names in 'plus minus' file must begin with '*' (high copy target genome), '+' (high copy base genomes), '-' (low copy genomes), '$D=<integer>' minimal Difference (default is 1), '$F=<double>' factor (default is 1.0), double), or '#' (ignore) suffix, encountered: \""
-                                                 + species + "\"" );
-                }
-                numbers.add( new Integer( min_diff + "" ) );
-                numbers.add( new Double( factor + "" ) );
-            }
-        }
-        else {
-            ForesterUtil.fatalError( surfacing.PRG_NAME, "'plus minus' file [" + plus_minus_file + "] appears empty" );
-        }
-    }
-
-    private static void writePresentToNexus( final File output_file,
-                                             final File positive_filter_file,
-                                             final SortedSet<String> filter,
-                                             final List<GenomeWideCombinableDomains> gwcd_list ) {
-        try {
-            SurfacingUtil
-                    .writeMatrixToFile( DomainParsimonyCalculator
-                            .createMatrixOfDomainPresenceOrAbsence( gwcd_list, positive_filter_file == null ? null
-                                    : filter ), output_file + DOMAINS_PRESENT_NEXUS, Format.NEXUS_BINARY );
-            SurfacingUtil.writeMatrixToFile( DomainParsimonyCalculator
-                    .createMatrixOfBinaryDomainCombinationPresenceOrAbsence( gwcd_list ), output_file
-                    + BDC_PRESENT_NEXUS, Format.NEXUS_BINARY );
-        }
-        catch ( final Exception e ) {
-            ForesterUtil.fatalError( surfacing.PRG_NAME, e.getLocalizedMessage() );
-        }
-    }
-
-    private static void writeProteinListsForAllSpecies( final File output_dir,
-                                                        final SortedMap<Species, List<Protein>> protein_lists_per_species,
-                                                        final List<GenomeWideCombinableDomains> gwcd_list,
-                                                        final double domain_e_cutoff ) {
-        final SortedSet<String> all_domains = new TreeSet<String>();
-        for( final GenomeWideCombinableDomains gwcd : gwcd_list ) {
-            all_domains.addAll( gwcd.getAllDomainIds() );
-        }
-        for( final String domain : all_domains ) {
-            final File out = new File( output_dir + ForesterUtil.FILE_SEPARATOR + domain + SEQ_EXTRACT_SUFFIX );
-            SurfacingUtil.checkForOutputFileWriteability( out );
-            try {
-                final Writer proteins_file_writer = new BufferedWriter( new FileWriter( out ) );
-                SurfacingUtil.extractProteinNames( protein_lists_per_species,
-                                                   domain,
-                                                   proteins_file_writer,
-                                                   "\t",
-                                                   LIMIT_SPEC_FOR_PROT_EX,
-                                                   domain_e_cutoff );
-                proteins_file_writer.close();
-            }
-            catch ( final IOException e ) {
-                ForesterUtil.fatalError( surfacing.PRG_NAME, e.getLocalizedMessage() );
-            }
-            ForesterUtil.programMessage( surfacing.PRG_NAME, "Wrote proteins list to \"" + out + "\"" );
-        }
     }
 }