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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!--NewPage--> <HTML> <HEAD> <!-- Generated by javadoc (build 1.6.0_17) on Sat Mar 27 22:46:11 EDT 2010 --> <META http-equiv="Content-Type" content="text/html; charset=UTF-8"> <TITLE> GeneticAlgorithm (Commons Math 2.1 API) </TITLE> <META NAME="date" CONTENT="2010-03-27"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../../stylesheet.css" TITLE="Style"> <SCRIPT type="text/javascript"> function windowTitle() { if (location.href.indexOf('is-external=true') == -1) { parent.document.title="GeneticAlgorithm (Commons Math 2.1 API)"; } } </SCRIPT> <NOSCRIPT> </NOSCRIPT> </HEAD> <BODY BGCOLOR="white" onload="windowTitle();"> <HR> <!-- ========= START OF TOP NAVBAR ======= --> <A NAME="navbar_top"><!-- --></A> <A HREF="#skip-navbar_top" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_top_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/GeneticAlgorithm.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR> </TABLE> </TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> </EM> </TD> </TR> <TR> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../org/apache/commons/math/genetics/FixedGenerationCount.html" title="class in org.apache.commons.math.genetics"><B>PREV CLASS</B></A> <A HREF="../../../../../org/apache/commons/math/genetics/InvalidRepresentationException.html" title="class in org.apache.commons.math.genetics"><B>NEXT CLASS</B></A></FONT></TD> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../index.html?org/apache/commons/math/genetics/GeneticAlgorithm.html" target="_top"><B>FRAMES</B></A> <A HREF="GeneticAlgorithm.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--> </SCRIPT> <NOSCRIPT> <A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A> </NOSCRIPT> </FONT></TD> </TR> <TR> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> </TR> </TABLE> <A NAME="skip-navbar_top"></A> <!-- ========= END OF TOP NAVBAR ========= --> <HR> <!-- ======== START OF CLASS DATA ======== --> <H2> <FONT SIZE="-1"> org.apache.commons.math.genetics</FONT> <BR> Class GeneticAlgorithm</H2> <PRE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A> <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.commons.math.genetics.GeneticAlgorithm</B> </PRE> <HR> <DL> <DT><PRE>public class <A HREF="../../../../../src-html/org/apache/commons/math/genetics/GeneticAlgorithm.html#line.29"><B>GeneticAlgorithm</B></A><DT>extends <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></DL> </PRE> <P> Implementation of a genetic algorithm. All factors that govern the operation of the algorithm can be configured for a specific problem. <P> <P> <DL> <DT><B>Since:</B></DT> <DD>2.0</DD> <DT><B>Version:</B></DT> <DD>$Revision: 925812 $ $Date: 2010-03-21 11:49:31 -0400 (Sun, 21 Mar 2010) $</DD> </DL> <HR> <P> <!-- ======== CONSTRUCTOR SUMMARY ======== --> <A NAME="constructor_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Constructor Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/genetics/GeneticAlgorithm.html#GeneticAlgorithm(org.apache.commons.math.genetics.CrossoverPolicy, double, org.apache.commons.math.genetics.MutationPolicy, double, org.apache.commons.math.genetics.SelectionPolicy)">GeneticAlgorithm</A></B>(<A HREF="../../../../../org/apache/commons/math/genetics/CrossoverPolicy.html" title="interface in org.apache.commons.math.genetics">CrossoverPolicy</A> crossoverPolicy, double crossoverRate, <A HREF="../../../../../org/apache/commons/math/genetics/MutationPolicy.html" title="interface in org.apache.commons.math.genetics">MutationPolicy</A> mutationPolicy, double mutationRate, <A HREF="../../../../../org/apache/commons/math/genetics/SelectionPolicy.html" title="interface in org.apache.commons.math.genetics">SelectionPolicy</A> selectionPolicy)</CODE> <BR> </TD> </TR> </TABLE> <!-- ========== METHOD SUMMARY =========== --> <A NAME="method_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Method Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/genetics/Population.html" title="interface in org.apache.commons.math.genetics">Population</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/genetics/GeneticAlgorithm.html#evolve(org.apache.commons.math.genetics.Population, org.apache.commons.math.genetics.StoppingCondition)">evolve</A></B>(<A HREF="../../../../../org/apache/commons/math/genetics/Population.html" title="interface in org.apache.commons.math.genetics">Population</A> initial, <A HREF="../../../../../org/apache/commons/math/genetics/StoppingCondition.html" title="interface in org.apache.commons.math.genetics">StoppingCondition</A> condition)</CODE> <BR> Evolve the given population.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/genetics/CrossoverPolicy.html" title="interface in org.apache.commons.math.genetics">CrossoverPolicy</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/genetics/GeneticAlgorithm.html#getCrossoverPolicy()">getCrossoverPolicy</A></B>()</CODE> <BR> Returns the crossover policy.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> double</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/genetics/GeneticAlgorithm.html#getCrossoverRate()">getCrossoverRate</A></B>()</CODE> <BR> Returns the crossover rate.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> int</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/genetics/GeneticAlgorithm.html#getGenerationsEvolved()">getGenerationsEvolved</A></B>()</CODE> <BR> Returns the number of generations evolved to reach <A HREF="../../../../../org/apache/commons/math/genetics/StoppingCondition.html" title="interface in org.apache.commons.math.genetics"><CODE>StoppingCondition</CODE></A> in the last run.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/genetics/MutationPolicy.html" title="interface in org.apache.commons.math.genetics">MutationPolicy</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/genetics/GeneticAlgorithm.html#getMutationPolicy()">getMutationPolicy</A></B>()</CODE> <BR> Returns the mutation policy.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> double</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/genetics/GeneticAlgorithm.html#getMutationRate()">getMutationRate</A></B>()</CODE> <BR> Returns the mutation rate.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>static <A HREF="../../../../../org/apache/commons/math/random/RandomGenerator.html" title="interface in org.apache.commons.math.random">RandomGenerator</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/genetics/GeneticAlgorithm.html#getRandomGenerator()">getRandomGenerator</A></B>()</CODE> <BR> Returns the (static) random generator.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/genetics/SelectionPolicy.html" title="interface in org.apache.commons.math.genetics">SelectionPolicy</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/genetics/GeneticAlgorithm.html#getSelectionPolicy()">getSelectionPolicy</A></B>()</CODE> <BR> Returns the selection policy.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/genetics/Population.html" title="interface in org.apache.commons.math.genetics">Population</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/genetics/GeneticAlgorithm.html#nextGeneration(org.apache.commons.math.genetics.Population)">nextGeneration</A></B>(<A HREF="../../../../../org/apache/commons/math/genetics/Population.html" title="interface in org.apache.commons.math.genetics">Population</A> current)</CODE> <BR> Evolve the given population into the next generation.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>static void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/genetics/GeneticAlgorithm.html#setRandomGenerator(org.apache.commons.math.random.RandomGenerator)">setRandomGenerator</A></B>(<A HREF="../../../../../org/apache/commons/math/random/RandomGenerator.html" title="interface in org.apache.commons.math.random">RandomGenerator</A> random)</CODE> <BR> Set the (static) random generator.</TD> </TR> </TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD> </TR> </TABLE> <P> <!-- ========= CONSTRUCTOR DETAIL ======== --> <A NAME="constructor_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Constructor Detail</B></FONT></TH> </TR> </TABLE> <A NAME="GeneticAlgorithm(org.apache.commons.math.genetics.CrossoverPolicy, double, org.apache.commons.math.genetics.MutationPolicy, double, org.apache.commons.math.genetics.SelectionPolicy)"><!-- --></A><H3> GeneticAlgorithm</H3> <PRE> public <A HREF="../../../../../src-html/org/apache/commons/math/genetics/GeneticAlgorithm.html#line.65"><B>GeneticAlgorithm</B></A>(<A HREF="../../../../../org/apache/commons/math/genetics/CrossoverPolicy.html" title="interface in org.apache.commons.math.genetics">CrossoverPolicy</A> crossoverPolicy, double crossoverRate, <A HREF="../../../../../org/apache/commons/math/genetics/MutationPolicy.html" title="interface in org.apache.commons.math.genetics">MutationPolicy</A> mutationPolicy, double mutationRate, <A HREF="../../../../../org/apache/commons/math/genetics/SelectionPolicy.html" title="interface in org.apache.commons.math.genetics">SelectionPolicy</A> selectionPolicy)</PRE> <DL> <DL> <DT><B>Parameters:</B><DD><CODE>crossoverPolicy</CODE> - The <A HREF="../../../../../org/apache/commons/math/genetics/CrossoverPolicy.html" title="interface in org.apache.commons.math.genetics"><CODE>CrossoverPolicy</CODE></A><DD><CODE>crossoverRate</CODE> - The crossover rate as a percentage (0-1 inclusive)<DD><CODE>mutationPolicy</CODE> - The <A HREF="../../../../../org/apache/commons/math/genetics/MutationPolicy.html" title="interface in org.apache.commons.math.genetics"><CODE>MutationPolicy</CODE></A><DD><CODE>mutationRate</CODE> - The mutation rate as a percentage (0-1 inclusive)<DD><CODE>selectionPolicy</CODE> - The <A HREF="../../../../../org/apache/commons/math/genetics/SelectionPolicy.html" title="interface in org.apache.commons.math.genetics"><CODE>SelectionPolicy</CODE></A></DL> </DL> <!-- ============ METHOD DETAIL ========== --> <A NAME="method_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Method Detail</B></FONT></TH> </TR> </TABLE> <A NAME="setRandomGenerator(org.apache.commons.math.random.RandomGenerator)"><!-- --></A><H3> setRandomGenerator</H3> <PRE> public static void <A HREF="../../../../../src-html/org/apache/commons/math/genetics/GeneticAlgorithm.html#line.87"><B>setRandomGenerator</B></A>(<A HREF="../../../../../org/apache/commons/math/random/RandomGenerator.html" title="interface in org.apache.commons.math.random">RandomGenerator</A> random)</PRE> <DL> <DD>Set the (static) random generator. <P> <DD><DL> <DT><B>Parameters:</B><DD><CODE>random</CODE> - random generator</DL> </DD> </DL> <HR> <A NAME="getRandomGenerator()"><!-- --></A><H3> getRandomGenerator</H3> <PRE> public static <A HREF="../../../../../org/apache/commons/math/random/RandomGenerator.html" title="interface in org.apache.commons.math.random">RandomGenerator</A> <A HREF="../../../../../src-html/org/apache/commons/math/genetics/GeneticAlgorithm.html#line.96"><B>getRandomGenerator</B></A>()</PRE> <DL> <DD>Returns the (static) random generator. <P> <DD><DL> <DT><B>Returns:</B><DD>the static random generator shared by GA implementation classes</DL> </DD> </DL> <HR> <A NAME="evolve(org.apache.commons.math.genetics.Population, org.apache.commons.math.genetics.StoppingCondition)"><!-- --></A><H3> evolve</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/genetics/Population.html" title="interface in org.apache.commons.math.genetics">Population</A> <A HREF="../../../../../src-html/org/apache/commons/math/genetics/GeneticAlgorithm.html#line.110"><B>evolve</B></A>(<A HREF="../../../../../org/apache/commons/math/genetics/Population.html" title="interface in org.apache.commons.math.genetics">Population</A> initial, <A HREF="../../../../../org/apache/commons/math/genetics/StoppingCondition.html" title="interface in org.apache.commons.math.genetics">StoppingCondition</A> condition)</PRE> <DL> <DD>Evolve the given population. Evolution stops when the stopping condition is satisfied. Updates the <A HREF="../../../../../org/apache/commons/math/genetics/GeneticAlgorithm.html#getGenerationsEvolved()"><CODE>generationsEvolved</CODE></A> property with the number of generations evolved before the StoppingCondition is satisfied. <P> <DD><DL> <DT><B>Parameters:</B><DD><CODE>initial</CODE> - the initial, seed population.<DD><CODE>condition</CODE> - the stopping condition used to stop evolution. <DT><B>Returns:</B><DD>the population that satisfies the stopping condition.</DL> </DD> </DL> <HR> <A NAME="nextGeneration(org.apache.commons.math.genetics.Population)"><!-- --></A><H3> nextGeneration</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/genetics/Population.html" title="interface in org.apache.commons.math.genetics">Population</A> <A HREF="../../../../../src-html/org/apache/commons/math/genetics/GeneticAlgorithm.html#line.142"><B>nextGeneration</B></A>(<A HREF="../../../../../org/apache/commons/math/genetics/Population.html" title="interface in org.apache.commons.math.genetics">Population</A> current)</PRE> <DL> <DD><p>Evolve the given population into the next generation.</p> <p><ol> <li>Get nextGeneration population to fill from <code>current</code> generation, using its nextGeneration method</li> <li>Loop until new generation is filled:</li> <ul><li>Apply configured SelectionPolicy to select a pair of parents from <code>current</code></li> <li>With probability = <A HREF="../../../../../org/apache/commons/math/genetics/GeneticAlgorithm.html#getCrossoverRate()"><CODE>getCrossoverRate()</CODE></A>, apply configured <A HREF="../../../../../org/apache/commons/math/genetics/CrossoverPolicy.html" title="interface in org.apache.commons.math.genetics"><CODE>CrossoverPolicy</CODE></A> to parents</li> <li>With probability = <A HREF="../../../../../org/apache/commons/math/genetics/GeneticAlgorithm.html#getMutationRate()"><CODE>getMutationRate()</CODE></A>, apply configured <A HREF="../../../../../org/apache/commons/math/genetics/MutationPolicy.html" title="interface in org.apache.commons.math.genetics"><CODE>MutationPolicy</CODE></A> to each of the offspring</li> <li>Add offspring individually to nextGeneration, space permitting</li> </ul> <li>Return nextGeneration</li> </ol> </p> <P> <DD><DL> <DT><B>Parameters:</B><DD><CODE>current</CODE> - the current population. <DT><B>Returns:</B><DD>the population for the next generation.</DL> </DD> </DL> <HR> <A NAME="getCrossoverPolicy()"><!-- --></A><H3> getCrossoverPolicy</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/genetics/CrossoverPolicy.html" title="interface in org.apache.commons.math.genetics">CrossoverPolicy</A> <A HREF="../../../../../src-html/org/apache/commons/math/genetics/GeneticAlgorithm.html#line.181"><B>getCrossoverPolicy</B></A>()</PRE> <DL> <DD>Returns the crossover policy. <P> <DD><DL> <DT><B>Returns:</B><DD>crossover policy</DL> </DD> </DL> <HR> <A NAME="getCrossoverRate()"><!-- --></A><H3> getCrossoverRate</H3> <PRE> public double <A HREF="../../../../../src-html/org/apache/commons/math/genetics/GeneticAlgorithm.html#line.189"><B>getCrossoverRate</B></A>()</PRE> <DL> <DD>Returns the crossover rate. <P> <DD><DL> <DT><B>Returns:</B><DD>crossover rate</DL> </DD> </DL> <HR> <A NAME="getMutationPolicy()"><!-- --></A><H3> getMutationPolicy</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/genetics/MutationPolicy.html" title="interface in org.apache.commons.math.genetics">MutationPolicy</A> <A HREF="../../../../../src-html/org/apache/commons/math/genetics/GeneticAlgorithm.html#line.197"><B>getMutationPolicy</B></A>()</PRE> <DL> <DD>Returns the mutation policy. <P> <DD><DL> <DT><B>Returns:</B><DD>mutation policy</DL> </DD> </DL> <HR> <A NAME="getMutationRate()"><!-- --></A><H3> getMutationRate</H3> <PRE> public double <A HREF="../../../../../src-html/org/apache/commons/math/genetics/GeneticAlgorithm.html#line.205"><B>getMutationRate</B></A>()</PRE> <DL> <DD>Returns the mutation rate. <P> <DD><DL> <DT><B>Returns:</B><DD>mutation rate</DL> </DD> </DL> <HR> <A NAME="getSelectionPolicy()"><!-- --></A><H3> getSelectionPolicy</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/genetics/SelectionPolicy.html" title="interface in org.apache.commons.math.genetics">SelectionPolicy</A> <A HREF="../../../../../src-html/org/apache/commons/math/genetics/GeneticAlgorithm.html#line.213"><B>getSelectionPolicy</B></A>()</PRE> <DL> <DD>Returns the selection policy. <P> <DD><DL> <DT><B>Returns:</B><DD>selection policy</DL> </DD> </DL> <HR> <A NAME="getGenerationsEvolved()"><!-- --></A><H3> getGenerationsEvolved</H3> <PRE> public int <A HREF="../../../../../src-html/org/apache/commons/math/genetics/GeneticAlgorithm.html#line.224"><B>getGenerationsEvolved</B></A>()</PRE> <DL> <DD>Returns the number of generations evolved to reach <A HREF="../../../../../org/apache/commons/math/genetics/StoppingCondition.html" title="interface in org.apache.commons.math.genetics"><CODE>StoppingCondition</CODE></A> in the last run. <P> <DD><DL> <DT><B>Returns:</B><DD>number of generations evolved<DT><B>Since:</B></DT> <DD>2.1</DD> </DL> </DD> </DL> <!-- ========= END OF CLASS DATA ========= --> <HR> <!-- ======= START OF BOTTOM NAVBAR ====== --> <A NAME="navbar_bottom"><!-- --></A> <A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_bottom_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" 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