edu.udo.cs.yale.tools.math.optimization.ec.pso
Class Population

java.lang.Object
  edu.udo.cs.yale.tools.math.optimization.ec.pso.Population

public class Population
extends java.lang.Object

This object stores for each individual index the current values and the best value for the individual so far. It also stores the fitness of the best values ever and the corresponding values.

Version:

$Id: Population.java,v 1.7 2006/08/25 11:18:57 ingomierswa Exp $

Author:

Ingo Mierswa

Field Summary

private static int	BEST
private PerformanceVector	bestPerformanceEver
private double[]	bestValuesEver
private static int	CURRENT
private int	generation
private double	generationsBest
private double[][]	individualFitness
private int	lastImprovement
private double[][][]	values

Constructor Summary

Population(int popSize, int individualSize)

Method Summary

double	getBestFitnessEver()
double	getBestFitnessInGeneration()
PerformanceVector	getBestPerformanceEver()
int	getGeneration()
int	getGenerationsWithoutImprovement()
double[]	getGlobalBestValues()
int	getIndividualSize()
double[]	getLocalBestValues(int index)
int	getNumberOfIndividuals()
double[]	getValues(int index)
void	nextGeneration()
void	setFitnessVector(PerformanceVector[] performanceVectors)
void	setValues(int index, double[] values)

Methods inherited from class java.lang.Object

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

Field Detail

CURRENT

private static final int CURRENT

See Also:

Constant Field Values

BEST

private static final int BEST

See Also:

Constant Field Values

values

private double[][][] values

individualFitness

private double[][] individualFitness

bestValuesEver

private double[] bestValuesEver

bestPerformanceEver

private PerformanceVector bestPerformanceEver

generationsBest

private double generationsBest

generation

private int generation

lastImprovement

private int lastImprovement

Constructor Detail

Population

public Population(int popSize,
                  int individualSize)

Method Detail

getNumberOfIndividuals

public int getNumberOfIndividuals()

getIndividualSize

public int getIndividualSize()

getValues

public double[] getValues(int index)

getLocalBestValues

public double[] getLocalBestValues(int index)

getGlobalBestValues

public double[] getGlobalBestValues()

getBestFitnessEver

public double getBestFitnessEver()

getBestPerformanceEver

public PerformanceVector getBestPerformanceEver()

getBestFitnessInGeneration

public double getBestFitnessInGeneration()

setValues

public void setValues(int index,
                      double[] values)

getGeneration

public int getGeneration()

nextGeneration

public void nextGeneration()

getGenerationsWithoutImprovement

public int getGenerationsWithoutImprovement()

setFitnessVector

public void setFitnessVector(PerformanceVector[] performanceVectors)