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8 <title>Class: Population
</title>
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49 <div id=
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50 <table class=
"header-table">
51 <tr class=
"top-aligned-row">
52 <td><strong>Class
</strong></td>
53 <td class=
"class-name-in-header">Population
</td>
55 <tr class=
"top-aligned-row">
56 <td><strong>In:
</strong></td>
58 <a href=
"../files/src/selection_rb.html">
62 <a href=
"../files/lib/libgenetics_rb.html">
69 <tr class=
"top-aligned-row">
70 <td><strong>Parent:
</strong></td>
77 <!-- banner header -->
79 <div id=
"bodyContent">
83 <div id=
"contextContent">
85 <div id=
"description">
87 A population of genomes
95 <div id=
"method-list">
96 <h3 class=
"section-bar">Methods
</h3>
98 <div class=
"name-list">
99 <a href=
"#M000019">crossover
</a>
100 <a href=
"#M000021">make_next_generation
</a>
101 <a href=
"#M000020">mutation
</a>
102 <a href=
"#M000018">new
</a>
103 <a href=
"#M000016">tournament_select_one
</a>
104 <a href=
"#M000017">tournament_select_population
</a>
119 <div id=
"attribute-list">
120 <h3 class=
"section-bar">Attributes
</h3>
122 <div class=
"name-list">
124 <tr class=
"top-aligned-row context-row">
125 <td class=
"context-item-name">individuals
</td>
126 <td class=
"context-item-value"> [RW]
</td>
127 <td class=
"context-item-desc"></td>
135 <!-- if method_list -->
137 <h3 class=
"section-bar">Public Class methods
</h3>
139 <div id=
"method-M000018" class=
"method-detail">
140 <a name=
"M000018"></a>
142 <div class=
"method-heading">
143 <a href=
"Population.src/M000018.html" target=
"Code" class=
"method-signature"
144 onclick=
"popupCode('Population.src/M000018.html');return false;">
145 <span class=
"method-name">new
</span><span class=
"method-args">(population_size, genome_length)
</span>
149 <div class=
"method-description">
151 Create a population of a given size
156 <h3 class=
"section-bar">Public Instance methods
</h3>
158 <div id=
"method-M000019" class=
"method-detail">
159 <a name=
"M000019"></a>
161 <div class=
"method-heading">
162 <a href=
"Population.src/M000019.html" target=
"Code" class=
"method-signature"
163 onclick=
"popupCode('Population.src/M000019.html');return false;">
164 <span class=
"method-name">crossover
</span><span class=
"method-args">(crossover_rate)
</span>
168 <div class=
"method-description">
170 Perform the
<a href=
"Population.html#M000019">crossover
</a> step in a
171 population, giving a
<a href=
"Population.html#M000018">new
</a> population
176 <div id=
"method-M000021" class=
"method-detail">
177 <a name=
"M000021"></a>
179 <div class=
"method-heading">
180 <a href=
"Population.src/M000021.html" target=
"Code" class=
"method-signature"
181 onclick=
"popupCode('Population.src/M000021.html');return false;">
182 <span class=
"method-name">make_next_generation
</span><span class=
"method-args">(tournament_winner_success_rate =
0.8, game_length =
1000, crossover_rate =
0.7, mutation_rate =
0.05)
</span>
186 <div class=
"method-description">
190 <div id=
"method-M000020" class=
"method-detail">
191 <a name=
"M000020"></a>
193 <div class=
"method-heading">
194 <a href=
"Population.src/M000020.html" target=
"Code" class=
"method-signature"
195 onclick=
"popupCode('Population.src/M000020.html');return false;">
196 <span class=
"method-name">mutation
</span><span class=
"method-args">(mutation_rate)
</span>
200 <div class=
"method-description">
202 Perform the
<a href=
"Population.html#M000020">mutation
</a> step in a
203 population, giving a
<a href=
"Population.html#M000018">new
</a> population
208 <div id=
"method-M000016" class=
"method-detail">
209 <a name=
"M000016"></a>
211 <div class=
"method-heading">
212 <a href=
"Population.src/M000016.html" target=
"Code" class=
"method-signature"
213 onclick=
"popupCode('Population.src/M000016.html');return false;">
214 <span class=
"method-name">tournament_select_one
</span><span class=
"method-args">(winner_success_chance =
0.8, max_game_length=
1000, verbose = false)
</span>
218 <div class=
"method-description">
220 Use tournament selection to pick an individual for the next generation
225 <div id=
"method-M000017" class=
"method-detail">
226 <a name=
"M000017"></a>
228 <div class=
"method-heading">
229 <a href=
"Population.src/M000017.html" target=
"Code" class=
"method-signature"
230 onclick=
"popupCode('Population.src/M000017.html');return false;">
231 <span class=
"method-name">tournament_select_population
</span><span class=
"method-args">(winner_success_chance =
0.8, max_game_length =
1000, verbose = false)
</span>
235 <div class=
"method-description">
237 Select a
<a href=
"Population.html#M000018">new
</a> population the same size
238 as the current population
250 <div id=
"validator-badges">
251 <p><small><a href=
"http://validator.w3.org/check/referer">[Validate]
</a></small></p>