org.vizzini.ai.geneticalgorithm
Interface IPopulation

All Known Implementing Classes:

AbstractPopulation, DefaultPopulation

public interface IPopulation

Defines methods required by a collection which holds IChromosome s.

Since:

v0.3

Version:

v0.3

Author:

Jeffrey M. Thompson

Method Summary

void	add(IChromosome chromosome) Add the given chromosome.
void	addAll(IPopulation population) Add all chromosomes from the given population to this.
int	capacity() Return the capacity of the population.
void	clearFitnesses() Clear the fitnesses of all members of the population.
boolean	contains(IChromosome chromosome) Return true if the given chromosome is a duplicate of one already in the population.
boolean	contains(IChromosome chromosome, int start, int end) Return true if the given chromosome is a duplicate of one already in the given range of the population.
IChromosome	first() Return the first chromosome.
IChromosome	get(int i) Return the chromosome at the given index.
double	getAverageFitness() Return the average fitness of all the chromosomes.
int	getMaxFitness()
int	getMinFitness()
int	getSumFitness() Return the sum of the chromosome's fitnesses.
int	indexOf(IChromosome chromosome) Return the index of the given chromosome.
boolean	isEmpty() Return true if this is empty.
void	resetAverageFitness() Reset the average fitness.
void	setFitnesses(int fitness) Set the fitnesses of all members of the population to the given value.
void	shuffle() Shuffle the chromosomes.
int	size() Return the current size of the population.
void	sort() Sort the chromosomes.
String	toString() Return a string representation of this object.

Method Detail

add

void add(IChromosome chromosome)

Add the given chromosome.

Parameters:

chromosome - Chromosome.

Since:

v0.3

addAll

void addAll(IPopulation population)

Add all chromosomes from the given population to this.

Since:

v0.3

capacity

int capacity()

Return the capacity of the population.

Since:

v0.3

clearFitnesses

void clearFitnesses()

Clear the fitnesses of all members of the population.

Since:

v0.3

contains

boolean contains(IChromosome chromosome)

Return true if the given chromosome is a duplicate of one already in the population.

Parameters:

chromosome - Chromosome for which to search.

Since:

v0.3

contains

boolean contains(IChromosome chromosome,
                 int start,
                 int end)

Return true if the given chromosome is a duplicate of one already in the given range of the population.

Parameters:

chromosome - Chromosome for which to search.

start - Start index.

end - End index plus one.

Since:

v0.3

first

IChromosome first()

Return the first chromosome.

Since:

v0.3

get

IChromosome get(int i)

Return the chromosome at the given index.

Parameters:

i - Chromosome index.

Since:

v0.3

getAverageFitness

double getAverageFitness()

Return the average fitness of all the chromosomes.

Since:

v0.3

getMaxFitness

int getMaxFitness()

Returns:

Return maxFitness.

Since:

v0.3

getMinFitness

int getMinFitness()

Returns:

Return minFitness.

Since:

v0.3

getSumFitness

int getSumFitness()

Return the sum of the chromosome's fitnesses.

Since:

v0.3

indexOf

int indexOf(IChromosome chromosome)

Return the index of the given chromosome.

Since:

v0.3

isEmpty

boolean isEmpty()

Return true if this is empty.

Since:

v0.3

resetAverageFitness

void resetAverageFitness()

Reset the average fitness.

Since:

v0.3

setFitnesses

void setFitnesses(int fitness)

Set the fitnesses of all members of the population to the given value.

Since:

v0.3

shuffle

void shuffle()

Shuffle the chromosomes.

Since:

v0.3

size

int size()

Return the current size of the population.

Since:

v0.3

sort

void sort()

Sort the chromosomes.

Since:

v0.3

toString

String toString()

Return a string representation of this object.

Overrides:

toString in class Object

Since:

v0.3