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Class: NEAT::Evolver::CritterOp — Documentation by YARD 0.8.7.3
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<span class="title">CritterOp</span>
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<div class="clear"></div> </div> <iframe id="search_frame"></iframe> <div id="content"><h1>Class: NEAT::Evolver::CritterOp
</h1>
<dl class=“box”>
<dt class="r1">Inherits:</dt>
<dd class="r1">
<span class="inheritName"><span class='object_link'><a href="../NeatOb.html" title="NEAT::NeatOb (class)">NeatOb</a></span></span>
<ul class="fullTree">
<li>Object</li>
<li class="next"><span class='object_link'><a href="../NeatOb.html" title="NEAT::NeatOb (class)">NeatOb</a></span></li>
<li class="next">NEAT::Evolver::CritterOp</li>
</ul>
<a href="#" class="inheritanceTree">show all</a>
</dd>
<dt class="r2 last">Defined in:</dt>
<dd class="r2 last">lib/rubyneat/evolver.rb</dd>
</dl> <div class=“clear”></div>
<h2>Overview</h2><div class=“docstring”>
<div class="discussion">
<p>A set of Critter Genotype operators.</p>
</div>
</div> <div class=“tags”>
</div>
<h2>Instance Attribute Summary</h2>
<h3 class="inherited">Attributes inherited from <span class='object_link'><a href="../NeatOb.html" title="NEAT::NeatOb (class)">NeatOb</a></span></h3>
<p class="inherited"><span class='object_link'><a href="../NeatOb.html#controller-instance_method" title="NEAT::NeatOb#controller (method)">#controller</a></span>, <span class='object_link'><a href="../NeatOb.html#name-instance_method" title="NEAT::NeatOb#name (method)">#name</a></span></p>
<h2>
Instance Method Summary
<small>(<a href="#" class="summary_toggle">collapse</a>)</small>
</h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#add_gene%21-instance_method" title="#add_gene! (instance method)">- (Object) <strong>add_gene!</strong>(crit) </a>
</span>
<span class="summary_desc"><div class='inline'>
<h1 id=“label-Add+a+gene+to+the+genome+Unlike+adding+a+new+neuron%2C+adding+a+new+gene+could+result+in+a+circular+dependency.”>Add a gene to the genome Unlike adding a new neuron, adding a new gene could result in a circular dependency.</h1> </div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#add_neuron%21-instance_method" title="#add_neuron! (instance method)">- (Object) <strong>add_neuron!</strong>(crit) </a>
</span>
<span class="summary_desc"><div class='inline'>
<h1 id=“label-Add+a+neuron+to+given+critter+Here%2C+we+add+a+neuron+by+randomly+picking+a+gene%2C+and+split+it+into+two+genes+with+an+intervening+neuron.”>Add a neuron to given critter Here, we add a neuron by randomly picking a gene, and split it into two genes with an intervening neuron.</h1> </div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#disable_gene%21-instance_method" title="#disable_gene! (instance method)">- (Object) <strong>disable_gene!</strong>(crit) </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Pick an enabled gene at random and disable it.</p> </div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#initialize-instance_method" title="#initialize (instance method)">- (CritterOp) <strong>initialize</strong>(evol) </a>
</span>
<span class="note title constructor">constructor</span>
<span class="summary_desc"><div class='inline'>
<p>A new instance of CritterOp.</p> </div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#reenable_gene%21-instance_method" title="#reenable_gene! (instance method)">- (Object) <strong>reenable_gene!</strong>(crit) </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Pick a disabled gene at random and reenable it.</p> </div></span>
</li>
</ul> <h3 class="inherited">Methods inherited from <span class='object_link'><a href="../NeatOb.html" title="NEAT::NeatOb (class)">NeatOb</a></span></h3> <p class="inherited"><span class='object_link'><a href="../NeatOb.html#log-instance_method" title="NEAT::NeatOb#log (method)">#log</a></span>, <span class='object_link'><a href="../NeatOb.html#log-class_method" title="NEAT::NeatOb.log (method)">log</a></span>, <span class='object_link'><a href="../NeatOb.html#to_s-instance_method" title="NEAT::NeatOb#to_s (method)">#to_s</a></span></p> <div id="constructor_details" class="method_details_list"> <h2>Constructor Details</h2> <div class="method_details first"> <h3 class="signature first" id="initialize-instance_method"> - (<tt><span class='object_link'><a href="" title="NEAT::Evolver::CritterOp (class)">CritterOp</a></span></tt>) <strong>initialize</strong>(evol)
</h3><div class=“docstring”>
<div class="discussion">
<p>Returns a new instance of CritterOp</p>
</div>
</div> <div class=“tags”>
</div><table class=“source_code”>
<tr>
<td>
<pre class="lines">
254 255 256 257 258</pre>
</td> <td> <pre class="code"><span class="info file"># File 'lib/rubyneat/evolver.rb', line 254</span>
<span class='kw'>def</span> <span class='id identifier rubyid_initialize'>initialize</span><span class='lparen'>(</span><span class='id identifier rubyid_evol'>evol</span><span class='rparen'>)</span>
<span class='kw'>super</span> <span class='id identifier rubyid_evol'>evol</span><span class='period'>.</span><span class='id identifier rubyid_controller'>controller</span> <span class='ivar'>@evolver</span> <span class='op'>=</span> <span class='id identifier rubyid_evol'>evol</span> <span class='ivar'>@npop</span> <span class='op'>=</span> <span class='id identifier rubyid_evol'>evol</span><span class='period'>.</span><span class='id identifier rubyid_npop'>npop</span>
<span class='kw'>end</span></pre>
</td> </tr>
</table> </div>
</div>
<div id="instance_method_details" class="method_details_list">
<h2>Instance Method Details</h2>
<div class="method_details first">
<h3 class="signature first" id="add_gene!-instance_method">
- (<tt>Object</tt>) <strong>add_gene!</strong>(crit)
</h3><div class=“docstring”>
<div class="discussion">
<h1 id=“label-Add+a+gene+to+the+genome”>Add a gene to the genome</h1>
<p>Unlike adding a new neuron, adding a new gene could result in a circular dependency. If so, and if recurrency is switched off, we must detect this condition and switch off the offending neurons.</p>
<p>Obviously, this might result in a loss of functionality, but oh well.</p>
<p>An easy and obvious check is to make sure we don't accept any inputs from output neurons, and we don't do any outputs to input neurons.</p>
<p>Constructs for handling recurrency are present in Expressor.</p>
</div>
</div> <div class=“tags”>
</div><table class=“source_code”>
<tr>
<td>
<pre class="lines">
290 291 292 293 294 295 296 297 298 299 300</pre>
</td> <td> <pre class="code"><span class="info file"># File 'lib/rubyneat/evolver.rb', line 290</span>
<span class='kw'>def</span> <span class='id identifier rubyid_add_gene!'>add_gene!</span><span class='lparen'>(</span><span class='id identifier rubyid_crit'>crit</span><span class='rparen'>)</span>
<span class='id identifier rubyid_n1'>n1</span> <span class='op'>=</span> <span class='id identifier rubyid_crit'>crit</span><span class='period'>.</span><span class='id identifier rubyid_genotype'>genotype</span><span class='period'>.</span><span class='id identifier rubyid_neurons'>neurons</span><span class='period'>.</span><span class='id identifier rubyid_values'>values</span><span class='period'>.</span><span class='id identifier rubyid_sample'>sample</span> <span class='comment'># input
</span> <span class='id identifier rubyid_n2'>n2</span> <span class='op'>=</span> <span class='id identifier rubyid_crit'>crit</span><span class='period'>.</span><span class='id identifier rubyid_genotype'>genotype</span><span class='period'>.</span><span class='id identifier rubyid_neurons'>neurons</span><span class='period'>.</span><span class='id identifier rubyid_values'>values</span><span class='period'>.</span><span class='id identifier rubyid_sample'>sample</span> <span class='comment'># output </span>
<span class='comment'># Sanity checks!
</span> <span class='kw'>unless</span> <span class='id identifier rubyid_n1'>n1</span> <span class='op'>==</span> <span class='id identifier rubyid_n2'>n2</span> <span class='kw'>or</span> <span class='id identifier rubyid_n1'>n1</span><span class='period'>.</span><span class='id identifier rubyid_output?'>output?</span> <span class='kw'>or</span> <span class='id identifier rubyid_n2'>n2</span><span class='period'>.</span><span class='id identifier rubyid_input?'>input?</span>
<span class='id identifier rubyid_gene'>gene</span> <span class='op'>=</span> <span class='const'>Critter</span><span class='op'>::</span><span class='const'>Genotype</span><span class='op'>::</span><span class='const'>Gene</span><span class='lbracket'>[</span><span class='id identifier rubyid_crit'>crit</span><span class='period'>.</span><span class='id identifier rubyid_genotype'>genotype</span><span class='comma'>,</span> <span class='id identifier rubyid_n1'>n1</span><span class='period'>.</span><span class='id identifier rubyid_name'>name</span><span class='comma'>,</span> <span class='id identifier rubyid_n2'>n2</span><span class='period'>.</span><span class='id identifier rubyid_name'>name</span><span class='comma'>,</span> <span class='const'>NEAT</span><span class='op'>::</span><span class='id identifier rubyid_controller'>controller</span><span class='period'>.</span><span class='id identifier rubyid_gaussian'>gaussian</span><span class='rbracket'>]</span>
<span class='id identifier rubyid_crit'>crit</span><span class='period'>.</span><span class='id identifier rubyid_genotype'>genotype</span><span class='period'>.</span><span class='id identifier rubyid_add_genes'>add_genes</span> <span class='id identifier rubyid_gene'>gene</span>
<span class='id identifier rubyid_log'>log</span><span class='period'>.</span><span class='id identifier rubyid_debug'>debug</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>add_gene! Added gene </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_gene'>gene</span><span class='embexpr_end'>}</span><span class='tstring_content'>(</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_n1'>n1</span><span class='period'>.</span><span class='id identifier rubyid_name'>name</span><span class='embexpr_end'>}</span><span class='tstring_content'> -> </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_n2'>n2</span><span class='period'>.</span><span class='id identifier rubyid_name'>name</span><span class='embexpr_end'>}</span><span class='tstring_content'>) to </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_crit'>crit</span><span class='embexpr_end'>}</span><span class='tstring_end'>"</span></span>
<span class='kw'>end</span>
<span class='kw'>end</span></pre>
</td> </tr>
</table> </div>
<div class="method_details "> <h3 class="signature " id="add_neuron!-instance_method"> - (<tt>Object</tt>) <strong>add_neuron!</strong>(crit)
</h3><div class=“docstring”>
<div class="discussion">
<h1 id=“label-Add+a+neuron+to+given+critter”>Add a neuron to given critter</h1>
<p>Here, we add a neuron by randomly picking a gene, and split it into two genes with an intervening neuron. The old gene is not replaced, but disabled. 2 new genes are created along with the new neuron.</p>
</div>
</div> <div class=“tags”>
</div><table class=“source_code”>
<tr>
<td>
<pre class="lines">
265 266 267 268 269 270 271 272 273 274</pre>
</td> <td> <pre class="code"><span class="info file"># File 'lib/rubyneat/evolver.rb', line 265</span>
<span class='kw'>def</span> <span class='id identifier rubyid_add_neuron!'>add_neuron!</span><span class='lparen'>(</span><span class='id identifier rubyid_crit'>crit</span><span class='rparen'>)</span>
<span class='id identifier rubyid_gene'>gene</span> <span class='op'>=</span> <span class='id identifier rubyid_crit'>crit</span><span class='period'>.</span><span class='id identifier rubyid_genotype'>genotype</span><span class='period'>.</span><span class='id identifier rubyid_genes'>genes</span><span class='period'>.</span><span class='id identifier rubyid_values'>values</span><span class='period'>.</span><span class='id identifier rubyid_sample'>sample</span>
<span class='id identifier rubyid_neu'>neu</span> <span class='op'>=</span> <span class='id identifier rubyid_controller'>controller</span><span class='period'>.</span><span class='id identifier rubyid_neural_hidden'>neural_hidden</span><span class='period'>.</span><span class='id identifier rubyid_values'>values</span><span class='period'>.</span><span class='id identifier rubyid_sample'>sample</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span><span class='lparen'>(</span><span class='id identifier rubyid_controller'>controller</span><span class='rparen'>)</span>
<span class='id identifier rubyid_g1'>g1</span> <span class='op'>=</span> <span class='const'>Critter</span><span class='op'>::</span><span class='const'>Genotype</span><span class='op'>::</span><span class='const'>Gene</span><span class='lbracket'>[</span><span class='id identifier rubyid_crit'>crit</span><span class='period'>.</span><span class='id identifier rubyid_genotype'>genotype</span><span class='comma'>,</span> <span class='id identifier rubyid_gene'>gene</span><span class='period'>.</span><span class='id identifier rubyid_in_neuron'>in_neuron</span><span class='comma'>,</span> <span class='id identifier rubyid_neu'>neu</span><span class='period'>.</span><span class='id identifier rubyid_name'>name</span><span class='comma'>,</span> <span class='id identifier rubyid_gene'>gene</span><span class='period'>.</span><span class='id identifier rubyid_weight'>weight</span><span class='rbracket'>]</span>
<span class='id identifier rubyid_g2'>g2</span> <span class='op'>=</span> <span class='const'>Critter</span><span class='op'>::</span><span class='const'>Genotype</span><span class='op'>::</span><span class='const'>Gene</span><span class='lbracket'>[</span><span class='id identifier rubyid_crit'>crit</span><span class='period'>.</span><span class='id identifier rubyid_genotype'>genotype</span><span class='comma'>,</span> <span class='id identifier rubyid_neu'>neu</span><span class='period'>.</span><span class='id identifier rubyid_name'>name</span><span class='comma'>,</span> <span class='id identifier rubyid_gene'>gene</span><span class='period'>.</span><span class='id identifier rubyid_out_neuron'>out_neuron</span><span class='comma'>,</span> <span class='id identifier rubyid_gene'>gene</span><span class='period'>.</span><span class='id identifier rubyid_weight'>weight</span><span class='rbracket'>]</span>
<span class='id identifier rubyid_gene'>gene</span><span class='period'>.</span><span class='id identifier rubyid_enabled'>enabled</span> <span class='op'>=</span> <span class='kw'>false</span>
<span class='id identifier rubyid_crit'>crit</span><span class='period'>.</span><span class='id identifier rubyid_genotype'>genotype</span><span class='period'>.</span><span class='id identifier rubyid_add_neurons'>add_neurons</span> <span class='id identifier rubyid_neu'>neu</span>
<span class='id identifier rubyid_crit'>crit</span><span class='period'>.</span><span class='id identifier rubyid_genotype'>genotype</span><span class='period'>.</span><span class='id identifier rubyid_add_genes'>add_genes</span> <span class='id identifier rubyid_g1'>g1</span><span class='comma'>,</span> <span class='id identifier rubyid_g2'>g2</span>
<span class='id identifier rubyid_log'>log</span><span class='period'>.</span><span class='id identifier rubyid_debug'>debug</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>add_neuron!: neu </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_neu'>neu</span><span class='embexpr_end'>}</span><span class='tstring_content'>, g1 </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_g1'>g1</span><span class='embexpr_end'>}</span><span class='tstring_content'>, g2 </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_g2'>g2</span><span class='embexpr_end'>}</span><span class='tstring_end'>"</span></span>
<span class='kw'>end</span></pre>
</td> </tr>
</table> </div>
<div class="method_details "> <h3 class="signature " id="disable_gene!-instance_method"> - (<tt>Object</tt>) <strong>disable_gene!</strong>(crit)
</h3><div class=“docstring”>
<div class="discussion">
<p>Pick an enabled gene at random and disable it.</p>
</div>
</div> <div class=“tags”>
</div><table class=“source_code”>
<tr>
<td>
<pre class="lines">
303 304 305 306</pre>
</td> <td> <pre class="code"><span class="info file"># File 'lib/rubyneat/evolver.rb', line 303</span>
<span class='kw'>def</span> <span class='id identifier rubyid_disable_gene!'>disable_gene!</span><span class='lparen'>(</span><span class='id identifier rubyid_crit'>crit</span><span class='rparen'>)</span>
<span class='id identifier rubyid_gene'>gene</span> <span class='op'>=</span> <span class='id identifier rubyid_crit'>crit</span><span class='period'>.</span><span class='id identifier rubyid_genotype'>genotype</span><span class='period'>.</span><span class='id identifier rubyid_genes'>genes</span><span class='period'>.</span><span class='id identifier rubyid_values'>values</span><span class='period'>.</span><span class='id identifier rubyid_reject'>reject</span><span class='lbrace'>{</span><span class='op'>|</span><span class='id identifier rubyid_gene'>gene</span><span class='op'>|</span> <span class='id identifier rubyid_gene'>gene</span><span class='period'>.</span><span class='id identifier rubyid_disabled?'>disabled?</span> <span class='rbrace'>}</span><span class='period'>.</span><span class='id identifier rubyid_sample'>sample</span>
<span class='id identifier rubyid_gene'>gene</span><span class='period'>.</span><span class='id identifier rubyid_enabled'>enabled</span> <span class='op'>=</span> <span class='kw'>false</span> <span class='kw'>unless</span> <span class='id identifier rubyid_gene'>gene</span><span class='period'>.</span><span class='id identifier rubyid_nil?'>nil?</span>
<span class='kw'>end</span></pre>
</td> </tr>
</table> </div>
<div class="method_details "> <h3 class="signature " id="reenable_gene!-instance_method"> - (<tt>Object</tt>) <strong>reenable_gene!</strong>(crit)
</h3><div class=“docstring”>
<div class="discussion">
<p>Pick a disabled gene at random and reenable it.</p>
</div>
</div> <div class=“tags”>
</div><table class=“source_code”>
<tr>
<td>
<pre class="lines">
309 310 311 312</pre>
</td> <td> <pre class="code"><span class="info file"># File 'lib/rubyneat/evolver.rb', line 309</span>
<span class='kw'>def</span> <span class='id identifier rubyid_reenable_gene!'>reenable_gene!</span><span class='lparen'>(</span><span class='id identifier rubyid_crit'>crit</span><span class='rparen'>)</span>
<span class='id identifier rubyid_gene'>gene</span> <span class='op'>=</span> <span class='id identifier rubyid_crit'>crit</span><span class='period'>.</span><span class='id identifier rubyid_genotype'>genotype</span><span class='period'>.</span><span class='id identifier rubyid_genes'>genes</span><span class='period'>.</span><span class='id identifier rubyid_values'>values</span><span class='period'>.</span><span class='id identifier rubyid_reject'>reject</span><span class='lbrace'>{</span><span class='op'>|</span><span class='id identifier rubyid_gene'>gene</span><span class='op'>|</span> <span class='id identifier rubyid_gene'>gene</span><span class='period'>.</span><span class='id identifier rubyid_enabled?'>enabled?</span> <span class='rbrace'>}</span><span class='period'>.</span><span class='id identifier rubyid_sample'>sample</span>
<span class='id identifier rubyid_gene'>gene</span><span class='period'>.</span><span class='id identifier rubyid_enabled'>enabled</span> <span class='op'>=</span> <span class='kw'>true</span> <span class='kw'>unless</span> <span class='id identifier rubyid_gene'>gene</span><span class='period'>.</span><span class='id identifier rubyid_nil?'>nil?</span>
<span class='kw'>end</span></pre>
</td> </tr>
</table> </div>
</div>
</div>
<div id="footer"> Generated on Sun Mar 16 16:36:51 2014 by <a href="http://yardoc.org" title="Yay! A Ruby Documentation Tool" target="_parent">yard</a> 0.8.7.3 (ruby-2.1.1).
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