examples.gp
Class KarubProblem.FormulaFitnessFunction

java.lang.Object
  org.jgap.gp.GPFitnessFunction
      examples.gp.KarubProblem.FormulaFitnessFunction

All Implemented Interfaces:

java.io.Serializable

Enclosing class:

KarubProblem

public static class KarubProblem.FormulaFitnessFunction
extends GPFitnessFunction

See Also:

Serialized Form

Field Summary

Fields inherited from class org.jgap.gp.GPFitnessFunction

MAX_FITNESS_VALUE, NO_FITNESS_VALUE

Constructor Summary

KarubProblem.FormulaFitnessFunction()

Method Summary

protected double

evaluate(IGPProgram ind) Determine the fitness of the given GPProgram instance.

Methods inherited from class org.jgap.gp.GPFitnessFunction

getFitnessValue, getLastComputedFitnessValue, GPFitnessFunction

Methods inherited from class java.lang.Object

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

Constructor Detail

KarubProblem.FormulaFitnessFunction

public KarubProblem.FormulaFitnessFunction()

Method Detail

evaluate

protected double evaluate(IGPProgram ind)

Description copied from class: GPFitnessFunction

Determine the fitness of the given GPProgram instance. The higher the return value, the more fit the instance. This method should always return the same fitness value for two equivalent GPProgram instances.

Specified by:

evaluate in class GPFitnessFunction

Parameters:

ind - the GPProgram instance to evaluate

Returns:

positive double reflecting the fitness rating of the given GPProgram. Note that if a non-positive double is returned, a RuntimeException should be generated