Package net.bmahe.genetics4j.gp.mutation

Class NodeReplacementMutator

java.lang.Object

net.bmahe.genetics4j.gp.mutation.NodeReplacementMutator

All Implemented Interfaces:

Mutator

public class NodeReplacementMutator
extends Object
implements Mutator

Field Summary

Fields

Modifier and Type	Field	Description
private final AbstractEAConfiguration	eaConfiguration
private final double	populationMutationProbability
private final ProgramHelper	programHelper
private final RandomGenerator	randomGenerator

Constructor Summary

Constructors

Constructor	Description
NodeReplacementMutator(ProgramHelper _programHelper, RandomGenerator _randomGenerator, AbstractEAConfiguration _eaConfiguration, double populationMutationProbability)

Method Summary

Modifier and Type	Method	Description
protected TreeNode<Operation<?>>	duplicateAndReplaceNode(Program program, TreeNode<Operation<?>> root, int cutPoint, int nodeIndex)
protected TreeNode<Operation<?>>	duplicateNode(Program program, TreeNode<Operation<?>> root, int cutPoint, int nodeIndex)
protected List<OperationFactory>	findReplacementCandidates(Program program, TreeNode<Operation<?>> root)
Genotype	mutate(Genotype original)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

programHelper

private final ProgramHelper programHelper

randomGenerator

private final RandomGenerator randomGenerator

eaConfiguration

private final AbstractEAConfiguration eaConfiguration

populationMutationProbability

private final double populationMutationProbability

Constructor Details

NodeReplacementMutator

public NodeReplacementMutator(ProgramHelper _programHelper,
 RandomGenerator _randomGenerator,
 AbstractEAConfiguration _eaConfiguration,
 double populationMutationProbability)

Method Details

duplicateNode

protected TreeNode<Operation<?>> duplicateNode(Program program,
 TreeNode<Operation<?>> root,
 int cutPoint,
 int nodeIndex)

findReplacementCandidates

protected List<OperationFactory> findReplacementCandidates(Program program,
 TreeNode<Operation<?>> root)

duplicateAndReplaceNode

protected TreeNode<Operation<?>> duplicateAndReplaceNode(Program program,
 TreeNode<Operation<?>> root,
 int cutPoint,
 int nodeIndex)

mutate

public Genotype mutate(Genotype original)

Specified by:

mutate in interface Mutator