org.encog.ml.genetic.mutate

Class MutatePerturb

java.lang.Object

org.encog.ml.genetic.mutate.MutatePerturb

All Implemented Interfaces:

EvolutionaryOperator

public class MutatePerturb
extends java.lang.Object
implements EvolutionaryOperator

A simple mutation based on random numbers.

Constructor Summary

Constructors

Constructor and Description
MutatePerturb(double thePerturbAmount) Construct a perturb mutation.

Method Summary

Modifier and Type	Method and Description
void	init(EvolutionaryAlgorithm theOwner) Called to setup the evolutionary operator.
int	offspringProduced()
int	parentsNeeded()
void	performOperation(java.util.Random rnd, Genome[] parents, int parentIndex, Genome[] offspring, int offspringIndex) Perform the evolutionary operation.

Methods inherited from class java.lang.Object

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

Constructor Detail

MutatePerturb

public MutatePerturb(double thePerturbAmount)

Construct a perturb mutation.

Parameters:

thePerturbAmount - The amount to mutate by(percent).

Method Detail

performOperation

public void performOperation(java.util.Random rnd,
                             Genome[] parents,
                             int parentIndex,
                             Genome[] offspring,
                             int offspringIndex)

Perform the evolutionary operation.

Specified by:

performOperation in interface EvolutionaryOperator

Parameters:

rnd - A random number generator.

parents - The parents.

parentIndex - The index into the parents array.

offspring - The offspring.

offspringIndex - An index into the offspring array.

offspringProduced

public int offspringProduced()

Specified by:

offspringProduced in interface EvolutionaryOperator

Returns:

The number of offspring produced, which is 1 for this mutation.

parentsNeeded

public int parentsNeeded()

Specified by:

parentsNeeded in interface EvolutionaryOperator

Returns:

The number of parents needed.

init

public void init(EvolutionaryAlgorithm theOwner)

Called to setup the evolutionary operator.

Specified by:

init in interface EvolutionaryOperator

Parameters:

theOwner - The evolutionary algorithm used with this operator.