jhpro.sregression

Class FormulaFitnessFunction

java.lang.Object

org.jgap.gp.GPFitnessFunction

jhpro.sregression.FormulaFitnessFunction

All Implemented Interfaces:

java.io.Serializable

public class FormulaFitnessFunction
extends GPFitnessFunction

Fitness function for evaluating the produced fomulas, represented as GP programs. The fitness is computed by calculating the result (Y) of the function/formula for integer inputs (X's). The sum of the differences between expected Y and actual Y is the fitness, the lower the better (as it is a defect rate here).

See Also:

Serialized Form

Field Summary

Fields inherited from class org.jgap.gp.GPFitnessFunction

MAX_FITNESS_VALUE, NO_FITNESS_VALUE

Constructor Summary

Constructors

Constructor and Description
FormulaFitnessFunction()

Method Summary

Modifier and Type	Method and Description
double	computeRawFitness(IGPProgram ind)

Methods inherited from class org.jgap.gp.GPFitnessFunction

getFitnessValue, getLastComputedFitnessValue, GPFitnessFunction

Methods inherited from class java.lang.Object

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

Constructor Detail

FormulaFitnessFunction

public FormulaFitnessFunction()

Method Detail

computeRawFitness

public double computeRawFitness(IGPProgram ind)