org.jgap
Class DefaultFitnessEvaluator

java.lang.Object
  org.jgap.DefaultFitnessEvaluator

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Comparable, FitnessEvaluator, ICloneable

public class DefaultFitnessEvaluator
extends java.lang.Object
implements FitnessEvaluator, ICloneable, java.lang.Comparable

A default implementation of a fitness evaluator. This implementation is straight forward: a higher fitness value is seen as fitter.

Since:

1.1

See Also:

Serialized Form

Constructor Summary

DefaultFitnessEvaluator()

Method Summary

java.lang.Object	clone()
int	compareTo(java.lang.Object a_other)
boolean	isFitter(double a_fitness_value1, double a_fitness_value2) Compares the first given fitness value with the second and returns true if the first one is greater than the second one.
boolean	isFitter(IChromosome a_chrom1, IChromosome a_chrom2)

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultFitnessEvaluator

public DefaultFitnessEvaluator()

Method Detail

isFitter

public boolean isFitter(double a_fitness_value1,
                        double a_fitness_value2)

Compares the first given fitness value with the second and returns true if the first one is greater than the second one. Otherwise returns false

Specified by:

isFitter in interface FitnessEvaluator

Parameters:

a_fitness_value1 - first fitness value

a_fitness_value2 - second fitness value

Returns:

true: first fitness value greater than second

Since:

2.0 (until 1.1: input types int)

isFitter

public boolean isFitter(IChromosome a_chrom1,
                        IChromosome a_chrom2)

Specified by:

isFitter in interface FitnessEvaluator

clone

public java.lang.Object clone()

Specified by:

clone in interface ICloneable

Overrides:

clone in class java.lang.Object

Returns:

deep clone of this instance

Since:

3.2

compareTo

public int compareTo(java.lang.Object a_other)

Specified by:

compareTo in interface java.lang.Comparable

Parameters:

a_other - sic

Returns:

as always

Since:

3.2