io.jenetics.ext

Class WeaselSelector<G extends Gene<?,G>,C extends Comparable<? super C>>

java.lang.Object

io.jenetics.ext.WeaselSelector<G,C>

All Implemented Interfaces:

Selector<G,C>

public class WeaselSelector<G extends Gene<?,G>,C extends Comparable<? super C>>
extends Object
implements Selector<G,C>

Selector implementation which is part of the Weasel program algorithm. The Weasel program is an thought experiment by Richard Dawkins to illustrate the functioning of the evolution: random mutation combined with non-random cumulative selection.

The selector always returns populations which only contains "count" instances of the best Phenotype.

Engine setup for the Weasel program:

final Engine<CharacterGene, Integer> engine = Engine .builder(fitness, gtf) // Set the 'WeaselSelector'. .selector(new WeaselSelector<>()) // Disable survivors selector. .offspringFraction(1) // Set the 'WeaselMutator'. .alterers(new WeaselMutator<>(0.05)) .build();

Since:

3.5

Version:

3.5

Author:

Franz Wilhelmstötter

See Also:

Weasel program, WeaselMutator

Constructor Summary

Constructors

Constructor and Description
WeaselSelector()

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
int	hashCode()
ISeq<Phenotype<G,C>>	select(Seq<Phenotype<G,C>> population, int count, Optimize opt)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

WeaselSelector

public WeaselSelector()

Method Detail

select

public ISeq<Phenotype<G,C>> select(Seq<Phenotype<G,C>> population,
                                   int count,
                                   Optimize opt)

Specified by:

select in interface Selector<G extends Gene<?,G>,C extends Comparable<? super C>>

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object