X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fanalysis%2FPCA.java;h=ae83400c8d4325c06f074b8608ff76c0060d0a41;hb=fcb39fa3bc47777bf4e0eb209f765dd254dc3cb9;hp=87ec922ccd96cb68673774ddad84c9ba7fb7121f;hpb=69b6e688c0a87bffc1fc7ae970fa0f8cd2976007;p=jalview.git

diff --git a/src/jalview/analysis/PCA.java b/src/jalview/analysis/PCA.java
index 87ec922..ae83400 100755
--- a/src/jalview/analysis/PCA.java
+++ b/src/jalview/analysis/PCA.java
@@ -20,6 +20,7 @@
  */
 package jalview.analysis;
 
+import jalview.analysis.scoremodels.PairwiseDistanceModel;
 import jalview.analysis.scoremodels.ScoreMatrix;
 import jalview.analysis.scoremodels.ScoreModels;
 import jalview.datamodel.BinarySequence;
@@ -94,14 +95,15 @@ public class PCA implements Runnable
     String sm = s_m;
     if (sm != null)
     {
-      smtrx = (ScoreMatrix) ScoreModels.getInstance().forName(sm);
+      smtrx = (ScoreMatrix) ((PairwiseDistanceModel) ScoreModels
+              .getInstance()
+              .forName(sm)).getScoreModel();
     }
     if (smtrx == null)
     {
       // either we were given a non-existent score matrix or a scoremodel that
       // isn't based on a pairwise symbol score matrix
-      smtrx = (ScoreMatrix) ScoreModels.getInstance().forName(
-              sm = (nucleotides ? "DNA" : "BLOSUM62"));
+      smtrx = ScoreModels.getInstance().getDefaultModel(!nucleotides);
     }
     details.append("PCA calculation using " + sm
             + " sequence similarity matrix\n========\n\n");