org.encog.ml.ea.population
Class BasicPopulation

java.lang.Object
  org.encog.ml.BasicML
      org.encog.ml.ea.population.BasicPopulation

All Implemented Interfaces:

Serializable, Population, MLMethod, MLProperties

Direct Known Subclasses:

NEATPopulation, PrgPopulation

public class BasicPopulation
extends BasicML
implements Population, Serializable

Defines the basic functionality for a population of genomes. The population is made up of species. These species contain the individiual genomes that make up the population. If you do not want to use species, then create one species that holds every genome.

See Also:

Serialized Form

Constructor Summary

BasicPopulation()
Construct an empty population.

BasicPopulation(int thePopulationSize, GenomeFactory theGenomeFactory)
Construct a population.

Method Summary

void	clear() Clear all genomes from this population.
Species	createSpecies() Create a species.
Species	determineBestSpecies() Determine which species has the top genome.
List<Genome>	flatten() Flatten the species into a single list of genomes.
Genome	getBestGenome()
GenomeFactory	getGenomeFactory()
int	getMaxIndividualSize()
String	getName()
int	getPopulationSize()
List<Species>	getSpecies()
void	purgeInvalidGenomes() Purge any invalid genomes.
void	setBestGenome(Genome genome) Set the best genome.
void	setGenomeFactory(GenomeFactory factory) Set the gnome factory.
void	setName(String theName) Set the name.
void	setPopulationSize(int thePopulationSize) Set the max population size.
int	size()
void	updateProperties() Update any objeccts when a property changes.

Methods inherited from class org.encog.ml.BasicML

getProperties, getPropertyDouble, getPropertyLong, getPropertyString, setProperty, setProperty, setProperty

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicPopulation

public BasicPopulation()

Construct an empty population.

BasicPopulation

public BasicPopulation(int thePopulationSize,
                       GenomeFactory theGenomeFactory)

Construct a population.

Parameters:

thePopulationSize - The population size.

Method Detail

clear

public void clear()

Clear all genomes from this population.

Specified by:

clear in interface Population

createSpecies

public Species createSpecies()

Create a species.

Specified by:

createSpecies in interface Population

Returns:

The newly created species.

determineBestSpecies

public Species determineBestSpecies()

Determine which species has the top genome.

Specified by:

determineBestSpecies in interface Population

Returns:

The species with the top genome.

flatten

public List<Genome> flatten()

Flatten the species into a single list of genomes.

Specified by:

flatten in interface Population

Returns:

The genomes that make up all species in the population.

getBestGenome

public Genome getBestGenome()

Specified by:

getBestGenome in interface Population

Returns:

The best genome in the population.

getGenomeFactory

public GenomeFactory getGenomeFactory()

Specified by:

getGenomeFactory in interface Population

Returns:

A factory used to create genomes.

getMaxIndividualSize

public int getMaxIndividualSize()

Specified by:

getMaxIndividualSize in interface Population

Returns:

The max size that an individual can become.

getName

public String getName()

Returns:

The name.

getPopulationSize

public int getPopulationSize()

Specified by:

getPopulationSize in interface Population

Returns:

The max population size.

getSpecies

public List<Species> getSpecies()

Specified by:

getSpecies in interface Population

Returns:

The species that make up the population.

setBestGenome

public void setBestGenome(Genome genome)

Set the best genome.

Specified by:

setBestGenome in interface Population

Parameters:

genome - The best genome.

setGenomeFactory

public void setGenomeFactory(GenomeFactory factory)

Set the gnome factory.

Specified by:

setGenomeFactory in interface Population

Parameters:

factory - The genome factory.

setName

public void setName(String theName)

Set the name.

Parameters:

theName - The new name.

setPopulationSize

public void setPopulationSize(int thePopulationSize)

Set the max population size.

Specified by:

setPopulationSize in interface Population

Parameters:

thePopulationSize - The max population size.

size

public int size()

Specified by:

size in interface Population

Returns:

The size of the population.

updateProperties

public void updateProperties()

Update any objeccts when a property changes.

Specified by:

updateProperties in interface MLProperties

Specified by:

updateProperties in class BasicML

purgeInvalidGenomes

public void purgeInvalidGenomes()

Purge any invalid genomes.

Specified by:

purgeInvalidGenomes in interface Population