keel.Algorithms.Hyperrectangles.EHS_CHC

Class Cromosoma

java.lang.Object

keel.Algorithms.Hyperrectangles.EHS_CHC.Cromosoma

All Implemented Interfaces:

java.lang.Comparable

public class Cromosoma
extends java.lang.Object
implements java.lang.Comparable

Chromosome structure for algorithm EHS_CHC.

Since:

JDK1.5

Version:

0.1

Author:

Written by Salvador Garcia (University of Jaen) 12/09/2009

Field Summary

Fields

Modifier and Type	Field and Description
double	cover covered percentage

Constructor Summary

Constructors

Constructor and Description
Cromosoma(boolean[] datos) Cronstruct a cromosome from a bit array
Cromosoma(int size) Construct a random chromosome of specified size
Cromosoma(int size, Cromosoma a) Create a copied chromosome

Method Summary

Modifier and Type	Method and Description
void	borrar() Marks a chromosome for deletion.
int	compareTo(java.lang.Object o1) Compare to Method
int	differenceAtOne(Cromosoma a) Test if two chromosome differ in only one gene
void	divergeCHC(double r, Cromosoma mejor, double prob) Reinitializes the chromosome by using CHC diverge procedure
boolean	estaEvaluado() Tests if the chromosome is already evaluated
boolean	esValido() Tests if the chromosome is valid
void	evalua(double[][] datos, int[][] nominal, boolean[][] missing, int[] clases, Hyper[] database, double[][] distans, double alfa, int nClases, double beta) Evaluates a chromosome
int	genesActivos() Count the number of genes set to 1
boolean[]	getBody() Get the body of a chromosome (all values)
double	getCalidad() Get the quality of a chromosome
boolean	getGen(int indice) Get the value of a gene
void	mutacion(double pMutacion1to0, double pMutacion0to1) Mutation operator
void	setGen(int indice, boolean valor) Set the value of a gene
java.lang.String	toString() To String Method

Methods inherited from class java.lang.Object

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

Field Detail

cover

public double cover

covered percentage

Constructor Detail

Cromosoma

public Cromosoma(int size)

Construct a random chromosome of specified size

Parameters:

size - size of the chromosome

Cromosoma

public Cromosoma(int size,
                 Cromosoma a)

Create a copied chromosome

Parameters:

size - size of the chromosome.

a - chromosomo to copy

Cromosoma

public Cromosoma(boolean[] datos)

Cronstruct a cromosome from a bit array

Parameters:

datos - bit array given.

Method Detail

getGen

public boolean getGen(int indice)

Get the value of a gene

Parameters:

indice - Index of the gene

Returns:

Value of the especified gene

getBody

public boolean[] getBody()

Get the body of a chromosome (all values)

Returns:

body of the chromosome (all boolean values)

getCalidad

public double getCalidad()

Get the quality of a chromosome

Returns:

Quality of the chromosome

setGen

public void setGen(int indice,
                   boolean valor)

Set the value of a gene

Parameters:

indice - Index of the gene

valor - Value to set

evalua

public void evalua(double[][] datos,
                   int[][] nominal,
                   boolean[][] missing,
                   int[] clases,
                   Hyper[] database,
                   double[][] distans,
                   double alfa,
                   int nClases,
                   double beta)

Evaluates a chromosome

Parameters:

datos - Reference to the training set

nominal - Reference to the training set (nominal valued)

missing - Reference to the training set (null values)

clases - Output attribute of each instance

database - Hyper database

distans - distances between elements

alfa - Alpha value of the fitness function

nClases - Number of classes of the problem

beta - Beta value of the fitness function

mutacion

public void mutacion(double pMutacion1to0,
                     double pMutacion0to1)

Mutation operator

Parameters:

pMutacion1to0 - Probability of change 1 to 0

pMutacion0to1 - Probability of change 0 to 1

divergeCHC

public void divergeCHC(double r,
                       Cromosoma mejor,
                       double prob)

Reinitializes the chromosome by using CHC diverge procedure

Parameters:

r - R factor of diverge

mejor - Best chromosome found so far

prob - Probability of setting a gen to 1

estaEvaluado

public boolean estaEvaluado()

Tests if the chromosome is already evaluated

Returns:

True if the chromosome is already evaluated. False, if not.

genesActivos

public int genesActivos()

Count the number of genes set to 1

Returns:

Number of genes set to 1 in the chromosome

esValido

public boolean esValido()

Tests if the chromosome is valid

Returns:

True if the chromosome is valid. False, if not.

borrar

public void borrar()

Marks a chromosome for deletion.

compareTo

public int compareTo(java.lang.Object o1)

Compare to Method

Specified by:

compareTo in interface java.lang.Comparable

Parameters:

o1 - Chromosome to compare

Returns:

Relative order between the chromosomes

differenceAtOne

public int differenceAtOne(Cromosoma a)

Test if two chromosome differ in only one gene

Parameters:

a - Chromosome to compare

Returns:

Position of the difference, if only one is found. Otherwise, -1

toString

public java.lang.String toString()

To String Method

Overrides:

toString in class java.lang.Object

Returns:

String representation of the chromosome