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8 <title>mutation (Population)
</title>
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13 <pre><span class=
"ruby-comment cmt"># File lib/libgenetics.rb, line
95</span>
14 <span class=
"ruby-keyword kw">def
</span> <span class=
"ruby-identifier">mutation
</span>(
<span class=
"ruby-identifier">mutation_rate
</span>)
15 <span class=
"ruby-identifier">parents
</span> =
<span class=
"ruby-ivar">@individuals
</span>.
<span class=
"ruby-identifier">dup
</span> <span class=
"ruby-comment cmt"># genomes that haven't been parents yet
</span>
16 <span class=
"ruby-identifier">next_population
</span> =
<span class=
"ruby-constant">Population
</span>.
<span class=
"ruby-identifier">new
</span>(
<span class=
"ruby-value">0</span>)
17 <span class=
"ruby-keyword kw">while
</span> <span class=
"ruby-identifier">parents
</span>.
<span class=
"ruby-identifier">length
</span> <span class=
"ruby-operator">></span> <span class=
"ruby-value">0</span>
18 <span class=
"ruby-identifier">parent
</span> =
<span class=
"ruby-identifier">parents
</span>.
<span class=
"ruby-identifier">pop
</span>
19 <span class=
"ruby-identifier">child
</span> =
<span class=
"ruby-identifier">parent
</span>.
<span class=
"ruby-identifier">mutate
</span> <span class=
"ruby-identifier">mutation_rate
</span>
20 <span class=
"ruby-identifier">next_population
</span>.
<span class=
"ruby-identifier">individuals
</span> <span class=
"ruby-operator"><<</span> <span class=
"ruby-identifier">child
</span>
21 <span class=
"ruby-keyword kw">end
</span>
22 <span class=
"ruby-identifier">next_population
</span>
23 <span class=
"ruby-keyword kw">end
</span></pre>