org.vizzini.ai.geneticprogramming.example
Class CartCentering

java.lang.Object
  org.vizzini.ai.geneticalgorithm.AbstractGeneticAlgorithm
      org.vizzini.ai.geneticprogramming.AbstractGeneticAlgorithmGP
          org.vizzini.ai.geneticprogramming.example.CartCentering

All Implemented Interfaces:

IGeneticAlgorithm, IGeneticAlgorithmGP

public class CartCentering
extends AbstractGeneticAlgorithmGP

Provides an example cart centering problem using genetic programming.

Since:

v0.3

Version:

v0.3

Author:

Jeffrey M. Thompson

Field Summary

Fields inherited from class org.vizzini.ai.geneticalgorithm.AbstractGeneticAlgorithm

_crossoverFraction, _crossoverType, _elapsedTime, _generation

Constructor Summary

CartCentering()
Construct this object.

Method Summary

protected double	computeError(Double x, Double v) Compute the error from the given parameters.
protected IFitnessCase	createFitnessCase(double x, double v) Create a fitness case for the given parameters.
protected int	evaluateFitness(int index, IChromosomeGP chromosome, boolean isPrinting) Evaluate the fitness of the given chromosome for this problem.
protected int	getPerfectFitness() Return the perfect fitness.
protected Class	getReturnType() Return the overall return type for the chromosomes.
static void	main(String[] args) Application method.

Methods inherited from class org.vizzini.ai.geneticprogramming.AbstractGeneticAlgorithmGP

addFunction, addTerminal, createChromosome, evaluateFitness, getContext, getFunctionCount, getFunctionGenerator, getInitialMaxDepth, getTerminalCount, isSimpleBetter, onePointCrossover, penalizeComplexity, setContext, setInitialMaxDepth, setSimpleBetter

Methods inherited from class org.vizzini.ai.geneticalgorithm.AbstractGeneticAlgorithm

averageCrossover, fillPopulation, generateNewPopulation, getAverageCrossoverFraction, getCrossoverFraction, getCrossoverType, getElapsedTime, getGeneration, getMostFit, getMutationFraction, getMutationMagnitude, getMutationRate, getPopulation, getPopulationSize, getProcessingRate, isDuplicateAllowed, mutation, reproductionAndCrossover, reset, runGenerations, setAverageCrossoverFraction, setCrossoverFraction, setCrossoverType, setDuplicateAllowed, setMutationFraction, setMutationMagnitude, setMutationRate, setPopulation, setPopulationSize, sortPopulation, toString, uniformCrossover, writeReport, writeStats, writeStatsHeader

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.vizzini.ai.geneticalgorithm.IGeneticAlgorithm

getCrossoverFraction, getCrossoverType, getElapsedTime, getGeneration, getMostFit, getMutationFraction, getMutationMagnitude, getMutationRate, getPopulationSize, getProcessingRate, reset, runGenerations, setAverageCrossoverFraction, setCrossoverFraction, setCrossoverType, setDuplicateAllowed, setMutationFraction, setMutationMagnitude, setMutationRate, setPopulationSize, writeReport

Constructor Detail

CartCentering

public CartCentering()

Construct this object.

Since:

v0.3

Method Detail

main

public static final void main(String[] args)

Application method.

Parameters:

args - Input arguments.

Since:

v0.3

computeError

protected double computeError(Double x,
                              Double v)

Compute the error from the given parameters.

Parameters:

x - State variable X.

v - State variable V.

Since:

v0.3

createFitnessCase

protected IFitnessCase createFitnessCase(double x,
                                         double v)

Create a fitness case for the given parameters.

Parameters:

x - Initial position.

v - Initial velocity.

Since:

v0.3

evaluateFitness

protected int evaluateFitness(int index,
                              IChromosomeGP chromosome,
                              boolean isPrinting)

Evaluate the fitness of the given chromosome for this problem.

Specified by:

evaluateFitness in class AbstractGeneticAlgorithmGP

Parameters:

chromosome - Chromosome.

isPrinting - Flag indicating if the method should print.

Since:

v0.3

getPerfectFitness

protected int getPerfectFitness()

Return the perfect fitness.

Overrides:

getPerfectFitness in class AbstractGeneticAlgorithm

Since:

v0.3

getReturnType

protected Class getReturnType()

Return the overall return type for the chromosomes.

Specified by:

getReturnType in class AbstractGeneticAlgorithmGP

Since:

v0.3