keel.Algorithms.Subgroup_Discovery.NMEEFSD.NMEEFSD

Class Population

java.lang.Object

keel.Algorithms.Subgroup_Discovery.NMEEFSD.NMEEFSD.Population

public class Population
extends java.lang.Object

Population of candidate rules

Since:

JDK1.5

Version:

1.0

Author:

Written by Cristóbal J. Carmona (University of Jaen) 11/08/2008

Field Summary

Fields

Modifier and Type	Field and Description
boolean[]	ej_cubiertos Covered examples of the population
int	num_used Number or individuals really used
int	ult_cambio_eval Last change in the population

Constructor Summary

Constructors

Constructor and Description
Population(int numind, int numgen, int nobj, int neje, java.lang.String RulRep, TableVar Variables) Creates a population of Individual

Method Summary

Modifier and Type	Method and Description
void	BsdInitPob(TableVar Variables, float porcVar, float porcPob, int neje, java.lang.String nFile) Biased random population initialization
void	CopyIndiv(int pos, int neje, int nobj, Individual a) Copy the individual in the Individual otro
int	evalPop(Genetic AG, TableVar Variables, TableDat Examples) Evaluates non-evaluated individuals
void	examplesCoverPopulation(int neje, int trials) This function marks the examples covered by the actual population.
int	getCromElem(int num_indiv, int pos, int elem, java.lang.String RulRep) Returns the indicated gene of the Chromosome
Individual	getIndiv(int pos) Returns the indicated individual of the population
CromCAN	getIndivCromCAN(int num_indiv) Returns de hole cromosoma of the selected individual
CromDNF	getIndivCromDNF(int num_indiv) Returns de hole cromosoma of the selected individual
boolean	getIndivEvaluated(int num_indiv) Returns if the individual of the population has been evaluated
int	getLastChangeEval() Return the number of the evaluation with the last change
int	getNumIndiv() Return the number of individuals of the population
void	Print(java.lang.String nFile, java.util.Vector v) Prints population individuals
void	setCromElem(int num_indiv, int pos, int elem, int val, java.lang.String RulRep) Sets the value of the indicated gene of the Chromosome
void	setIndivEvaluated(int num_indiv, boolean val) Sets the value for de evaluated attribute of the individual

Methods inherited from class java.lang.Object

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

Field Detail

num_used

public int num_used

Number or individuals really used

ej_cubiertos

public boolean[] ej_cubiertos

Covered examples of the population

ult_cambio_eval

public int ult_cambio_eval

Last change in the population

Constructor Detail

Population

public Population(int numind,
                  int numgen,
                  int nobj,
                  int neje,
                  java.lang.String RulRep,
                  TableVar Variables)

Creates a population of Individual

Parameters:

numind - Number of individuals

numgen - Number of variables

nobj - Number of objectives

neje - Number of examples

RulRep - Rules representation

Variables - Variables structure

Method Detail

BsdInitPob

public void BsdInitPob(TableVar Variables,
                       float porcVar,
                       float porcPob,
                       int neje,
                       java.lang.String nFile)

Biased random population initialization

Parameters:

Variables - Variables structure

porcVar - Percentage of variables to form the rules

porcPob - Percentage of population with biased initialisation

neje - Number of examples

nFile - File to write the population

evalPop

public int evalPop(Genetic AG,
                   TableVar Variables,
                   TableDat Examples)

Evaluates non-evaluated individuals

Parameters:

AG - Genetic algorithm

Variables - Variables structure

Examples - Examples structure

Returns:

Number of evaluations performed

getIndiv

public Individual getIndiv(int pos)

Returns the indicated individual of the population

Parameters:

pos - Position of the individual

Returns:

Individual

getNumIndiv

public int getNumIndiv()

Return the number of individuals of the population

Returns:

Number of individuals of the population

CopyIndiv

public void CopyIndiv(int pos,
                      int neje,
                      int nobj,
                      Individual a)

Copy the individual in the Individual otro

Parameters:

pos - Position of the individual to copy

neje - Number of examples

nobj - Number of objectives

a - Individual to copy

getCromElem

public int getCromElem(int num_indiv,
                       int pos,
                       int elem,
                       java.lang.String RulRep)

Returns the indicated gene of the Chromosome

Parameters:

num_indiv - Position of the individual

pos - Position of the variable

elem - Position of the gene of the variable

RulRep - Rules representation

Returns:

Gene of the chromosome

setCromElem

public void setCromElem(int num_indiv,
                        int pos,
                        int elem,
                        int val,
                        java.lang.String RulRep)

Sets the value of the indicated gene of the Chromosome

Parameters:

num_indiv - Position of the individual

pos - Position of the variable

elem - Position of the gene of the variable

val - Value for the gene

RulRep - Rules representation

getIndivEvaluated

public boolean getIndivEvaluated(int num_indiv)

Returns if the individual of the population has been evaluated

Parameters:

num_indiv - Position of the individual

Returns:

True if the individual of the population has been evaluated, False otherwise.

setIndivEvaluated

public void setIndivEvaluated(int num_indiv,
                              boolean val)

Sets the value for de evaluated attribute of the individual

Parameters:

num_indiv - Position of the individual

val - Value of the individual

getIndivCromCAN

public CromCAN getIndivCromCAN(int num_indiv)

Returns de hole cromosoma of the selected individual

Parameters:

num_indiv - Position of the individual

Returns:

Canonical chromosome

getIndivCromDNF

public CromDNF getIndivCromDNF(int num_indiv)

Returns de hole cromosoma of the selected individual

Parameters:

num_indiv - Position of the individual

Returns:

DNF chromosome

getLastChangeEval

public int getLastChangeEval()

Return the number of the evaluation with the last change

Returns:

Number of the last evaluation

examplesCoverPopulation

public void examplesCoverPopulation(int neje,
                                    int trials)

This function marks the examples covered by the actual population.

Parameters:

neje - Number of examples

trials - Number of trials performed

Print

public void Print(java.lang.String nFile,
                  java.util.Vector v)

Prints population individuals

Parameters:

nFile - File to write the population

v - Vector which indicates if the individual if repeated