org.oakgp.evolve

Class GenerationEvolverImpl

java.lang.Object

org.oakgp.evolve.GenerationEvolverImpl

All Implemented Interfaces:

GenerationEvolver

public final class GenerationEvolverImpl
extends Object
implements GenerationEvolver

Uses a user-defined collection of GeneticOperator instances to evolve new generations from existing generations.

Constructor Summary

Constructors

Constructor and Description
GenerationEvolverImpl(int elitismSize, NodeSelectorFactory selectorFactory, Map<GeneticOperator,Integer> operators) Creates a GenerationEvolverImpl that uses the given values to evolve new generations.

Method Summary

Modifier and Type	Method and Description
Collection<Node>	evolve(RankedCandidates oldGeneration) Returns a new generation of Node instances evolved from the specified existing generation.

Methods inherited from class java.lang.Object

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

Constructor Detail

GenerationEvolverImpl

public GenerationEvolverImpl(int elitismSize,
                             NodeSelectorFactory selectorFactory,
                             Map<GeneticOperator,Integer> operators)

Creates a GenerationEvolverImpl that uses the given values to evolve new generations.

Parameters:

elitismSize - the number of best candidates from an existing generation to automatically include "as-is" in the next generation

selectorFactory - used to select candidates from an existing generation to be used as a basis for evolving candidates for the next generation

operators - the genetic operators to be used to evolve new candidates where the key = a genetic operator and the value = the number of times that genetic operator should be applied during each single invocation of evolve(RankedCandidates)

Method Detail

evolve

public Collection<Node> evolve(RankedCandidates oldGeneration)

Returns a new generation of Node instances evolved from the specified existing generation.

Specified by:

evolve in interface GenerationEvolver

Parameters:

oldGeneration - the existing generation to use as a basis for evolving a new generation

Returns:

a new generation of Node instances evolved from the existing generation specified by oldGeneration