org.jgap.impl

Class DefaultCrossoverRateCalculator

java.lang.Object

org.jgap.BaseRateCalculator

org.jgap.impl.DefaultCrossoverRateCalculator

All Implemented Interfaces:

java.io.Serializable, IUniversalRateCalculator

public class DefaultCrossoverRateCalculator
extends BaseRateCalculator

Default implementation of a dynamic CrossoverRateCalculator.

Since:

2.0

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DefaultCrossoverRateCalculator(Configuration a_config)

Method Summary

Modifier and Type	Method and Description
int	calculateCurrentRate() Calculates the dynamic crossover rate.
boolean	toBePermutated(IChromosome a_chrom, int a_geneIndex) Determines whether crossover is to be carried out for a given population.

Methods inherited from class org.jgap.BaseRateCalculator

getConfiguration

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultCrossoverRateCalculator

public DefaultCrossoverRateCalculator(Configuration a_config)
                               throws InvalidConfigurationException

Parameters:

a_config - the configuration to use

Throws:

InvalidConfigurationException

Method Detail

calculateCurrentRate

public int calculateCurrentRate()

Calculates the dynamic crossover rate. This is chosen to be the chromosome size. As the chromosome gets larger we assume that it is less likely to reproduce.

Returns:

calculated divisor of crossover rate

Since:

2.0

toBePermutated

public boolean toBePermutated(IChromosome a_chrom,
                              int a_geneIndex)

Determines whether crossover is to be carried out for a given population.

Parameters:

a_chrom - ignored

a_geneIndex - ignored

Returns:

true: the DefaultCrossoverRateCalculator always returns a finite rate

Since:

2.0