Package org.apache.commons.math.genetics

Class BinaryChromosome

java.lang.Object

org.apache.commons.math.genetics.Chromosome

org.apache.commons.math.genetics.AbstractListChromosome<java.lang.Integer>

org.apache.commons.math.genetics.BinaryChromosome

All Implemented Interfaces:

java.lang.Comparable<Chromosome>, Fitness

public abstract class BinaryChromosome
extends AbstractListChromosome<java.lang.Integer>

Chromosome represented by a vector of 0s and 1s.

Since:

2.0

Version:

$Revision: 811685 $ $Date: 2009-09-05 19:36:48 +0200 (sam. 05 sept. 2009) $

Constructor Summary

Constructors

Constructor	Description
BinaryChromosome(java.lang.Integer[] representation)	Constructor.
BinaryChromosome(java.util.List<java.lang.Integer> representation)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected void	checkValidity(java.util.List<java.lang.Integer> chromosomeRepresentation)	Asserts that representation can represent a valid chromosome.
protected boolean	isSame(Chromosome another)	Returns true iff another has the same representation and therefore the same fitness.
static java.util.List<java.lang.Integer>	randomBinaryRepresentation(int length)	Returns a representation of a random binary array of length length.

Methods inherited from class org.apache.commons.math.genetics.AbstractListChromosome

getLength, getRepresentation, newFixedLengthChromosome, toString

Methods inherited from class org.apache.commons.math.genetics.Chromosome

compareTo, findSameChromosome, getFitness, searchForFitnessUpdate

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.commons.math.genetics.Fitness

fitness

Constructor Detail

BinaryChromosome

public BinaryChromosome(java.util.List<java.lang.Integer> representation)

Constructor.

Parameters:

representation - list of {0,1} values representing the chromosome

BinaryChromosome

public BinaryChromosome(java.lang.Integer[] representation)

Constructor.

Parameters:

representation - array of {0,1} values representing the chromosome

Method Detail

checkValidity

protected void checkValidity(java.util.List<java.lang.Integer> chromosomeRepresentation)
                      throws InvalidRepresentationException

Asserts that representation can represent a valid chromosome.

Specified by:

checkValidity in class AbstractListChromosome<java.lang.Integer>

Parameters:

chromosomeRepresentation - representation of the chromosome

Throws:

InvalidRepresentationException - iff the representation can not represent a valid chromosome

randomBinaryRepresentation

public static java.util.List<java.lang.Integer> randomBinaryRepresentation(int length)

Returns a representation of a random binary array of length length.

Parameters:

length - length of the array

Returns:

a random binary array of length length

isSame

protected boolean isSame(Chromosome another)

Returns true iff another has the same representation and therefore the same fitness. By default, it returns false -- override it in your implementation if you need it.

Overrides:

isSame in class Chromosome

Parameters:

another - chromosome to compare

Returns:

true if another is equivalent to this chromosome