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8 <title>mutate (Genome)
</title>
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13 <pre><span class=
"ruby-comment cmt"># File lib/libgenetics.rb, line
29</span>
14 <span class=
"ruby-keyword kw">def
</span> <span class=
"ruby-identifier">mutate
</span>(
<span class=
"ruby-identifier">mutation_probability
</span> =
<span class=
"ruby-value">0</span><span class=
"ruby-value">.05</span>)
15 <span class=
"ruby-identifier">new_genome
</span> =
<span class=
"ruby-constant">Genome
</span>.
<span class=
"ruby-identifier">new
</span>(
<span class=
"ruby-ivar">@genome
</span>.
<span class=
"ruby-identifier">length
</span>)
16 (
<span class=
"ruby-value">0</span><span class=
"ruby-operator">...
</span><span class=
"ruby-ivar">@genome
</span>.
<span class=
"ruby-identifier">length
</span>).
<span class=
"ruby-identifier">each
</span> <span class=
"ruby-keyword kw">do
</span> <span class=
"ruby-operator">|
</span><span class=
"ruby-identifier">i
</span><span class=
"ruby-operator">|
</span>
17 <span class=
"ruby-keyword kw">if
</span> <span class=
"ruby-identifier">rand
</span>(
<span class=
"ruby-value">1</span>)
<span class=
"ruby-operator"><</span> <span class=
"ruby-identifier">mutation_probability
</span>
18 <span class=
"ruby-keyword kw">if
</span> <span class=
"ruby-ivar">@genome
</span>[
<span class=
"ruby-identifier">i
</span>]
<span class=
"ruby-operator">==
</span> <span class=
"ruby-value">0</span>
19 <span class=
"ruby-identifier">new_genome
</span>.
<span class=
"ruby-identifier">genome
</span>[
<span class=
"ruby-identifier">i
</span>] =
<span class=
"ruby-value">1</span>
20 <span class=
"ruby-keyword kw">else
</span>
21 <span class=
"ruby-identifier">new_genome
</span>.
<span class=
"ruby-identifier">genome
</span>[
<span class=
"ruby-identifier">i
</span>] =
<span class=
"ruby-value">0</span>
22 <span class=
"ruby-keyword kw">end
</span>
23 <span class=
"ruby-keyword kw">else
</span>
24 <span class=
"ruby-identifier">new_genome
</span>.
<span class=
"ruby-identifier">genome
</span>[
<span class=
"ruby-identifier">i
</span>] =
<span class=
"ruby-ivar">@genome
</span>[
<span class=
"ruby-identifier">i
</span>]
25 <span class=
"ruby-keyword kw">end
</span>
26 <span class=
"ruby-keyword kw">end
</span>
27 <span class=
"ruby-identifier">new_genome
</span>
28 <span class=
"ruby-keyword kw">end
</span></pre>