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<div class="subTitle">jcgp</div>
<h2 title="Class JCGP" class="title">Class JCGP</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
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<pre>public class <span class="typeNameLabel">JCGP</span>
extends java.lang.Object</pre>
<div class="block">Top-level JCGP class. This class is the entry point for a CGP experiment.
<br><br>
An instance of JCGP encapsulates the entire experiment. It contains a <code>Resources</code>
object which can be retrieved via a getter. Modules can be selected using their
respective setters.
<br><br>
The flow of the experiment is controlled using <code>start()</code>, <code>nextGeneration()</code>
and <code>reset()</code>. Files can be loaded with their respective load methods and
chromosome configurations can be saved with <code>saveChromosome()</code>.
<br><br>
JCGP supports an extra console in addition to <code>System.console()</code>, so that messages
can also be printed to a GUI, for example. This extra console can be set with <code>setConsole()</code>,
and must implement jcgp.resources.Console.</div>
<dl>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>Eduardo Pedroni</dd>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#JCGP--">JCGP</a></span>()</code>
<div class="block">Creates a new instance of JCGP.</div>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code><a href="../jcgp/backend/modules/es/EvolutionaryStrategy.html" title="class in jcgp.backend.modules.es">EvolutionaryStrategy</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#getEvolutionaryStrategies--">getEvolutionaryStrategies</a></span>()</code> </td>
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<td class="colFirst"><code><a href="../jcgp/backend/modules/es/EvolutionaryStrategy.html" title="class in jcgp.backend.modules.es">EvolutionaryStrategy</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#getEvolutionaryStrategy--">getEvolutionaryStrategy</a></span>()</code> </td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="../jcgp/backend/modules/mutator/Mutator.html" title="class in jcgp.backend.modules.mutator">Mutator</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#getMutator--">getMutator</a></span>()</code> </td>
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<td class="colFirst"><code><a href="../jcgp/backend/modules/mutator/Mutator.html" title="class in jcgp.backend.modules.mutator">Mutator</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#getMutators--">getMutators</a></span>()</code> </td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../jcgp/backend/population/Population.html" title="class in jcgp.backend.population">Population</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#getPopulation--">getPopulation</a></span>()</code> </td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../jcgp/backend/modules/problem/Problem.html" title="class in jcgp.backend.modules.problem">Problem</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#getProblem--">getProblem</a></span>()</code> </td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="../jcgp/backend/modules/problem/Problem.html" title="class in jcgp.backend.modules.problem">Problem</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#getProblems--">getProblems</a></span>()</code> </td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="../jcgp/backend/resources/ModifiableResources.html" title="class in jcgp.backend.resources">ModifiableResources</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#getResources--">getResources</a></span>()</code>
<div class="block">Returns a reference to the <code>ModifiableResources</code> used by the
experiment.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#isFinished--">isFinished</a></span>()</code>
<div class="block">Returns the experiment's status.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#loadChromosome-java.io.File-int-">loadChromosome</a></span>(java.io.File file,
int chromosomeIndex)</code>
<div class="block">Loads a chromosome from the given file into
the specified population index.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#loadParameters-java.io.File-">loadParameters</a></span>(java.io.File file)</code>
<div class="block">When given a .par file, this method loads the parameters into the
experiment's resources.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#loadProblemData-java.io.File-">loadProblemData</a></span>(java.io.File file)</code>
<div class="block">Parses a problem data file.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#main-java.lang.String...-">main</a></span>(java.lang.String... args)</code>
<div class="block">JCGP main method, this is used to execute JCGP from the command line.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#nextGeneration--">nextGeneration</a></span>()</code>
<div class="block">Performs one full generational cycle.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#reset--">reset</a></span>()</code>
<div class="block">Resets the experiment.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#saveChromosome-java.io.File-int-">saveChromosome</a></span>(java.io.File file,
int chromosomeIndex)</code>
<div class="block">Saves a copy of the specified chromosome
into the given file.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#setConsole-jcgp.backend.resources.Console-">setConsole</a></span>(<a href="../jcgp/backend/resources/Console.html" title="interface in jcgp.backend.resources">Console</a> console)</code>
<div class="block">Sets an extra console.</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#setEvolutionaryStrategy-int-">setEvolutionaryStrategy</a></span>(int index)</code> </td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#setMutator-int-">setMutator</a></span>(int index)</code> </td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#setProblem-int-">setProblem</a></span>(int index)</code> </td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../jcgp/JCGP.html#start--">start</a></span>()</code>
<div class="block">This method calls <code>nextGeneration()</code> in a loop
until the experiment is flagged as finished.</div>
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<h4>JCGP</h4>
<pre>public JCGP()</pre>
<div class="block">Creates a new instance of JCGP.</div>
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<h4>main</h4>
<pre>public static void main(java.lang.String... args)</pre>
<div class="block">JCGP main method, this is used to execute JCGP from the command line.
<br><br>
In this case the program works in the same way as the classic CGP implementation,
requiring a .par file and an optional problem data file. As in the traditional CGP
implementation, the program must be compiled with the right problem type selected.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>args</code> - one or more files needed to perform the experiment.</dd>
</dl>
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<pre>public <a href="../jcgp/backend/resources/ModifiableResources.html" title="class in jcgp.backend.resources">ModifiableResources</a> getResources()</pre>
<div class="block">Returns a reference to the <code>ModifiableResources</code> used by the
experiment. <br>
Use this with care, since changing experiment parameters may
have unintended effects if not done properly.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a reference to the experiment's resources.</dd>
</dl>
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<pre>public <a href="../jcgp/backend/population/Population.html" title="class in jcgp.backend.population">Population</a> getPopulation()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a reference to the experiment's population.</dd>
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<pre>public <a href="../jcgp/backend/modules/mutator/Mutator.html" title="class in jcgp.backend.modules.mutator">Mutator</a>[] getMutators()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a complete list of the experiment's mutators.</dd>
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<pre>public <a href="../jcgp/backend/modules/mutator/Mutator.html" title="class in jcgp.backend.modules.mutator">Mutator</a> getMutator()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the currently selected mutator.</dd>
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<h4>getEvolutionaryStrategies</h4>
<pre>public <a href="../jcgp/backend/modules/es/EvolutionaryStrategy.html" title="class in jcgp.backend.modules.es">EvolutionaryStrategy</a>[] getEvolutionaryStrategies()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a complete list of the experiment's evolutionary strategies.</dd>
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<h4>getEvolutionaryStrategy</h4>
<pre>public <a href="../jcgp/backend/modules/es/EvolutionaryStrategy.html" title="class in jcgp.backend.modules.es">EvolutionaryStrategy</a> getEvolutionaryStrategy()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the currently selected evolutionary strategy.</dd>
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<h4>getProblems</h4>
<pre>public <a href="../jcgp/backend/modules/problem/Problem.html" title="class in jcgp.backend.modules.problem">Problem</a>[] getProblems()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a complete list of the experiment's problem types.</dd>
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<h4>getProblem</h4>
<pre>public <a href="../jcgp/backend/modules/problem/Problem.html" title="class in jcgp.backend.modules.problem">Problem</a> getProblem()</pre>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>the currently selected problem type.</dd>
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<h4>setMutator</h4>
<pre>public void setMutator(int index)</pre>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>index</code> - the index of the desired mutator.</dd>
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<h4>setEvolutionaryStrategy</h4>
<pre>public void setEvolutionaryStrategy(int index)</pre>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>index</code> - the index of the desired evolutionary strategy.</dd>
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<pre>public void setProblem(int index)</pre>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>index</code> - the index of the desired problem type.</dd>
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<h4>nextGeneration</h4>
<pre>public void nextGeneration()</pre>
<div class="block">Performs one full generational cycle. More specifically,
this method evaluates the current population using the
selected problem, and checks whether a solution has been found.
<br>
If the experiment is to continue, a new generation is created
using the selected evolutionary strategy and mutator.
<br><br>
This method also deals with ending runs, in other words,
a new population is created at the end of each run automatically.
When all runs have been performed, this method sets the experiment
finished flag and does nothing until <code>reset()</code> is called.</div>
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<h4>start</h4>
<pre>public void start()</pre>
<div class="block">This method calls <code>nextGeneration()</code> in a loop
until the experiment is flagged as finished. This is
performed on the same thread of execution, so this
method will most likely block for a significant amount
of time (problem-dependent, but anywhere from seconds to days).
<br>
Once the experiment is finished, calling this method does
nothing until <code>reset()</code> is called.</div>
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<h4>reset</h4>
<pre>public void reset()</pre>
<div class="block">Resets the experiment.
<br>
More specifically: this creates a new population, resets
the current generation and run parameters to 1 and prints
a complete list of the experiment's parameters.</div>
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<h4>loadParameters</h4>
<pre>public void loadParameters(java.io.File file)</pre>
<div class="block">When given a .par file, this method loads the parameters into the
experiment's resources. This causes an experiment-wide reset.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>file</code> - the file to parse.</dd>
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<pre>public void loadProblemData(java.io.File file)</pre>
<div class="block">Parses a problem data file. This is problem-dependent, not
all problems require a data file.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>file</code> - the file to parse.</dd>
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<h4>loadChromosome</h4>
<pre>public void loadChromosome(java.io.File file,
int chromosomeIndex)</pre>
<div class="block">Loads a chromosome from the given file into
the specified population index.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>file</code> - the chromosome to parse.</dd>
<dd><code>chromosomeIndex</code> - the population index into which to parse.</dd>
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<h4>saveChromosome</h4>
<pre>public void saveChromosome(java.io.File file,
int chromosomeIndex)</pre>
<div class="block">Saves a copy of the specified chromosome
into the given file.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>file</code> - the target file.</dd>
<dd><code>chromosomeIndex</code> - the index of the chromosome to save.</dd>
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<h4>isFinished</h4>
<pre>public boolean isFinished()</pre>
<div class="block">Returns the experiment's status. When finished, the only
way to continue is by calling <code>reset()</code>.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if the experiment is finished.</dd>
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<h4>setConsole</h4>
<pre>public void setConsole(<a href="../jcgp/backend/resources/Console.html" title="interface in jcgp.backend.resources">Console</a> console)</pre>
<div class="block">Sets an extra console. The entire JCGP library prints
messages to <code>System.console()</code> but also to an
additional console, if one is defined. This is used so
that messages are printed on a user interface as well,
or written directly to a file, for example.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>console</code> - the extra console to be used.</dd>
</dl>
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