jenes.population

Class Population.Statistics<T extends Chromosome>

java.lang.Object

jenes.statistics.StatisticsLogger.LoggableStatistics

jenes.population.Population.Statistics<T>

Enclosing class:

Population<T extends Chromosome>

public static final class Population.Statistics<T extends Chromosome>
extends StatisticsLogger.LoggableStatistics

The Population.Statistics class is only responsible for storing statistics about a population. As each population can contains legal and illegal individials, it holds the individuals with the higher and lower fitness (a deep-cloning is maked to store these individuals so they don't change if the source population does), the average and deviation values both regard legal individuals and illegal ones. Esamples of use are showed below.

 Population.Statistics stat = a_population.getStatistics();
 

returns a new statistics object setted according to the specified population state.

 Population.Statistics stat = new Population.Statistics();
 a_population.updateStatistics(stat);
 

modifies the existing statistics according to the specified population state.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Population.Statistics.Group<T extends Chromosome> Represents a group of individuals and related statistics.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Population.Statistics(boolean[] bis) Constructs a new Population.Statitics

Method Summary

Methods

Modifier and Type	Method and Description
Population.Statistics.Group<T>	addGroup(Population.Filter filter, boolean collectable) Add a new Population.Statistics.Group of individuals definition to the population accessible in statistics
java.util.Collection<Population.Statistics.Group<T>>	getAllGroups() Returns a collection of all Population.Statistics.Group
boolean[]	getBiggerIsBetter() Returns a array that contains a flag for each objective.
Population.Statistics.Group<T>	getGroup(Population.Filter filter) Returns a Population.Statistics.Group for a specific Population.Filter given as argument
Individual<T>	getIllegalHighestIndividual() Deprecated.
double	getIllegalHighestScore() Deprecated.
Individual<T>	getIllegalLowestIndividual() Deprecated.
double	getIllegalLowestScore() Deprecated.
double	getIllegalScoreAvg() Deprecated.
double	getIllegalScoreDev() Deprecated.
Individual<T>	getLegalHighestIndividual() Deprecated.
double	getLegalHighestScore() Deprecated.
Individual<T>	getLegalLowestIndividual() Deprecated.
double	getLegalLowestScore() Deprecated.
double	getLegalScoreAvg() Deprecated.
double	getLegalScoreDev() Deprecated.
int	getNumOfIllegalIndividuals() Deprecated.
int	getNumOfIndividuals() Deprecated.
int	getNumOfLegalIndividuals() Deprecated.
int	getNumOfObjectives() Returns the number of objective.
void	update(Population<T> population) Updates all its information about population

Methods inherited from class jenes.statistics.StatisticsLogger.LoggableStatistics

getFigures, getValue

Methods inherited from class java.lang.Object

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

Constructor Detail

Population.Statistics

protected Population.Statistics(boolean[] bis)

Constructs a new Population.Statitics

Parameters:

bis - array of flags. Each flag indicates if maximize or minimize the score for an objective in a specific position.

Method Detail

update

public final void update(Population<T> population)

Updates all its information about population

Parameters:

population -

getBiggerIsBetter

public boolean[] getBiggerIsBetter()

Returns a array that contains a flag for each objective. Each flag indicates if maximize or minimize the score for an objective in a specific position

Returns:

getNumOfObjectives

public int getNumOfObjectives()

Returns the number of objective.

Returns:

the number of objective.

addGroup

public Population.Statistics.Group<T> addGroup(Population.Filter filter,
                                      boolean collectable)

Add a new Population.Statistics.Group of individuals definition to the population accessible in statistics

Parameters:

filter - the filter to apply in generating a Group of solutions

collectable - true if the group have to preserve the individuals that generate statistics; false if only numerical statistics are required; in this case, the Population.Statistics.Group.iterator() will return null individuals and {@link Group#getCardinality()] will return ever 1.

Returns:

the Population.Statistics.Group generated applying the filter given as argument

getGroup

public Population.Statistics.Group<T> getGroup(Population.Filter filter)

Returns a Population.Statistics.Group for a specific Population.Filter given as argument

Parameters:

filter - to select a specific group

Returns:

a group

getAllGroups

public java.util.Collection<Population.Statistics.Group<T>> getAllGroups()

Returns a collection of all Population.Statistics.Group

Returns:

all groups

getLegalScoreAvg

@Deprecated
public final double getLegalScoreAvg()

Deprecated.

Returns the average score of the legal individual of this population

Returns:

the average score of the legal individual of this population

getLegalScoreDev

@Deprecated
public final double getLegalScoreDev()

Deprecated.

Returns the deviation score of the legal individual of this population

Returns:

the deviation score of the legal individual of this population

getLegalHighestScore

@Deprecated
public final double getLegalHighestScore()

Deprecated.

Returns the highest legal score of this population

Returns:

the highest legal score of this population

getLegalHighestIndividual

@Deprecated
public final Individual<T> getLegalHighestIndividual()

Deprecated.

Returns the highest legal score individual of this population

Returns:

the highest legal score individual of this population

getLegalLowestScore

@Deprecated
public final double getLegalLowestScore()

Deprecated.

Returns the lowest legal score of this population

Returns:

the lowest legal score of this population

getLegalLowestIndividual

@Deprecated
public final Individual<T> getLegalLowestIndividual()

Deprecated.

Returns the lowest legal score individual of this population

Returns:

the lowest legal score individual of this population

getIllegalScoreAvg

@Deprecated
public final double getIllegalScoreAvg()

Deprecated.

Returns the average score of the illegal individual of this population

Returns:

the average score of the illegal individual of this population

getIllegalScoreDev

@Deprecated
public final double getIllegalScoreDev()

Deprecated.

Returns the deviation score of the illegal individual of this population

Returns:

the deviation score of the illegal individual of this population

getIllegalHighestScore

@Deprecated
public final double getIllegalHighestScore()

Deprecated.

Returns the highest illegal score of this population

Returns:

the highest illegal score of this population

getIllegalHighestIndividual

@Deprecated
public final Individual<T> getIllegalHighestIndividual()

Deprecated.

Returns the highest illegal score individual of this population

Returns:

the highest illegal score individual of this population

getIllegalLowestScore

@Deprecated
public final double getIllegalLowestScore()

Deprecated.

Returns the lowest illegal score of this population

Returns:

the lowest illegal score of this population

getIllegalLowestIndividual

@Deprecated
public final Individual<T> getIllegalLowestIndividual()

Deprecated.

Returns the lowest illegal score individual of this population

Returns:

the lowest illegal score individual of this population

getNumOfIndividuals

@Deprecated
public final int getNumOfIndividuals()

Deprecated.

Provides the number of individuals in the population

Returns:

the number of individuals

getNumOfLegalIndividuals

@Deprecated
public final int getNumOfLegalIndividuals()

Deprecated.

Returns the number of legal individuals in the population

Returns:

the numer of legal individuals

getNumOfIllegalIndividuals

@Deprecated
public final int getNumOfIllegalIndividuals()

Deprecated.

Provides the number of illegal individuals in the population

Returns:

the number of illegal individuals