org.jgap.gp.impl

Class DefaultGPFitnessEvaluator

java.lang.Object

org.jgap.gp.impl.DefaultGPFitnessEvaluator

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, IGPFitnessEvaluator

public class DefaultGPFitnessEvaluator
extends java.lang.Object
implements IGPFitnessEvaluator, java.lang.Cloneable

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

Since:

3.0

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DefaultGPFitnessEvaluator()

Method Summary

Modifier and Type	Method and Description
java.lang.Object	clone()
int	compareTo(java.lang.Object a_object)
boolean	equals(java.lang.Object a_object)
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(IGPProgram a_prog1, IGPProgram a_prog2)

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultGPFitnessEvaluator

public DefaultGPFitnessEvaluator()

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 IGPFitnessEvaluator

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(IGPProgram a_prog1,
                        IGPProgram a_prog2)

Specified by:

isFitter in interface IGPFitnessEvaluator

equals

public boolean equals(java.lang.Object a_object)

Overrides:

equals in class java.lang.Object

compareTo

public int compareTo(java.lang.Object a_object)

clone

public java.lang.Object clone()

Overrides:

clone in class java.lang.Object

Returns:

deep clone of this instance

Since:

3.2