code_ruby/Maasha/lib/doc/classes/Seq.src/M000043.html

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   5   <title>complement (Seq)</title>
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  10   <pre><span class="ruby-comment cmt"># File seq.rb, line 58</span>
  11   <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">complement</span>
  12     <span class="ruby-identifier">raise</span> <span class="ruby-constant">SeqError</span>, <span class="ruby-value str">&quot;Cannot complement 0 length sequence&quot;</span> <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">length</span> <span class="ruby-operator">==</span> <span class="ruby-value">0</span>
  13
  14     <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">is_dna</span>
  15       <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">seq</span>.<span class="ruby-identifier">tr!</span>( <span class="ruby-value str">'AGCUTRYWSMKHDVBNagcutrywsmkhdvbn'</span>, <span class="ruby-value str">'TCGAAYRWSKMDHBVNtcgaayrwskmdhbvn'</span> )
  16     <span class="ruby-keyword kw">elsif</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">is_rna</span>
  17       <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">seq</span>.<span class="ruby-identifier">tr!</span>( <span class="ruby-value str">'AGCUTRYWSMKHDVBNagcutrywsmkhdvbn'</span>, <span class="ruby-value str">'UCGAAYRWSKMDHBVNucgaayrwskmdhbvn'</span> )
  18     <span class="ruby-keyword kw">else</span>
  19       <span class="ruby-identifier">raise</span> <span class="ruby-constant">SeqError</span>, <span class="ruby-node">&quot;Cannot complement sequence type: #{self.type}&quot;</span>
  20     <span class="ruby-keyword kw">end</span>
  21   <span class="ruby-keyword kw">end</span></pre>
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