X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=wiki%2FPhyloBioRuby.wiki;h=75b98ecd9ea92e6f066f2ad04ebca52dacab0707;hb=cc120365e1205de99103487d581225b4554556f4;hp=503fc75198d7b5b23435fd2e6b5ea0e23cab9a8c;hpb=e49430be142b9b3d380b87d7040b4664e3174644;p=jalview.git diff --git a/wiki/PhyloBioRuby.wiki b/wiki/PhyloBioRuby.wiki index 503fc75..75b98ec 100644 --- a/wiki/PhyloBioRuby.wiki +++ b/wiki/PhyloBioRuby.wiki @@ -23,6 +23,41 @@ Copyright (C) 2011 Christian M Zmasek. All rights reserved. === Reading in a Multiple Sequence Alignment from a File === +This automatically determines the format +{{{ +#!/usr/bin/env ruby +require 'bio' + +seq_ary = Array.new +ff = Bio::FlatFile.auto('bcl2.fasta') +ff.each_entry do |entry| + seq_ary.push(entry) + puts entry.entry_id # prints the identifier of the entry + puts entry.definition # prints the definition of the entry + puts entry.seq # prints the sequence data of the entry +end + +# Creates a multiple sequence alignment (possibly unaligned) named +# 'seqs' from array 'seq_ary'. +seqs = Bio::Alignment.new(seq_ary) +seqs.each { |seq| puts seq.to_s } + +# Writes multiple sequence alignment (possibly unaligned) 'seqs' +# to a file in PHYLIP format. +File.open('out0.phylip', 'w') do |f| + f.write(seqs.output(:phylip)) +end + +# Writes multiple sequence alignment (possibly unaligned) 'seqs' +# to a file in FASTA format. +File.open('out0.fasta', 'w') do |f| + f.write(seqs.output(:fasta)) +end +}}} + + +==== ClustalW Format ==== + The following example shows how to read in a *ClustalW*-formatted multiple sequence alignment. {{{ @@ -43,12 +78,49 @@ msa.each do |entry| end }}} +==== FASTA Format ==== + +The following example shows how to read in a *FASTA*-formatted multiple sequence file. (_This seems a little clumsy, I wonder if there is a more direct way, avoiding the creation of an array.) +{{{ +#!/usr/bin/env ruby +require 'bio' + +# Reads in a FASTA-formatted multiple sequence alignment (which does +# not have to be aligned, though) and stores its sequences in +# array 'seq_ary'. +seq_ary = Array.new +fasta_seqs = Bio::Alignment::MultiFastaFormat.new(File.open('infile.fasta').read) +fasta_seqs.entries.each do |seq| + seq_ary.push(seq) +end + +# Creates a multiple sequence alignment (possibly unaligned) named +# 'seqs' from array 'seq_ary'. +seqs = Bio::Alignment.new(seq_ary) + +# Prints each sequence to the console. +seqs.each { |seq| puts seq.to_s } + +# Writes multiple sequence alignment (possibly unaligned) 'seqs' +# to a file in PHYLIP format. +File.open('outfile.phylip', 'w') do |f| + f.write(seqs.output(:phylip)) +end +}}} + Relevant API documentation: * [http://bioruby.open-bio.org/rdoc/classes/Bio/ClustalW/Report.html Bio::ClustalW::Report] * [http://bioruby.open-bio.org/rdoc/classes/Bio/Alignment.html Bio::Alignment] * [http://bioruby.open-bio.org/rdoc/classes/Bio/Sequence.html Bio::Sequence] +=== Creating a Multiple Sequence Alignment === + + +=== Creating a Multiple Sequence Alignment from a Database === + +? + === Writing a Multiple Sequence Alignment to a File ===