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8 <title>tournament_select_population (Population)
</title>
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13 <pre><span class=
"ruby-comment cmt"># File src/selection.rb, line
37</span>
14 <span class=
"ruby-keyword kw">def
</span> <span class=
"ruby-identifier">tournament_select_population
</span>(
<span class=
"ruby-identifier">winner_success_chance
</span> =
<span class=
"ruby-value">0</span><span class=
"ruby-value">.8</span>,
<span class=
"ruby-identifier">max_game_length
</span> =
<span class=
"ruby-value">1000</span>,
<span class=
"ruby-identifier">verbose
</span> =
<span class=
"ruby-keyword kw">false
</span>)
15 <span class=
"ruby-identifier">new_population
</span> = []
16 <span class=
"ruby-value">1</span>.
<span class=
"ruby-identifier">upto
</span>(
<span class=
"ruby-ivar">@individuals
</span>.
<span class=
"ruby-identifier">length
</span>)
<span class=
"ruby-keyword kw">do
</span>
17 <span class=
"ruby-identifier">new_population
</span> <span class=
"ruby-operator"><<</span> <span class=
"ruby-identifier">tournament_select_one
</span>(
<span class=
"ruby-identifier">winner_success_chance
</span>,
<span class=
"ruby-identifier">max_game_length
</span>,
<span class=
"ruby-identifier">verbose
</span>).
<span class=
"ruby-identifier">to_genome
</span>
18 <span class=
"ruby-identifier">puts
</span> <span class=
"ruby-node">"Created #{new_population.length} indivduals
"</span> <span class=
"ruby-keyword kw">if
</span> <span class=
"ruby-identifier">verbose
</span>
19 <span class=
"ruby-keyword kw">end
</span>
20 <span class=
"ruby-identifier">new_population
</span>
21 <span class=
"ruby-keyword kw">end
</span></pre>