Module io.jenetics.ext

Package io.jenetics.ext

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

java.lang.Object

io.jenetics.AbstractAlterer<G,C>

io.jenetics.Mutator<G,C>

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

All Implemented Interfaces:

Alterer<G,C>

public class RSMutator<G extends Gene<?,G>,C extends Comparable<? super C>>
extends Mutator<G,C>

The reverse sequence mutation, two positions i and j are randomly chosen The gene order in a chromosome will then be reversed between this two points. This mutation operator can also be used for combinatorial problems, where no duplicated genes within a chromosome are allowed, e.g., for the TSP.

Since:

5.0

Version:

5.0

See Also:

• SwapMutator

Field Summary

Fields inherited from class io.jenetics.AbstractAlterer

_probability

Fields inherited from interface io.jenetics.Alterer

DEFAULT_ALTER_PROBABILITY

Constructor Summary

Constructors

Constructor	Description
RSMutator()	Default constructor, with default mutation probability (Alterer.DEFAULT_ALTER_PROBABILITY).
RSMutator(double probability)	Constructs an alterer with a given recombination probability.

Method Summary

Modifier and Type	Method	Description
protected MutatorResult<Chromosome<G>>	mutate(Chromosome<G> chromosome, double p, RandomGenerator random)	Mutates the given chromosome.

Methods inherited from class io.jenetics.Mutator

alter, mutate, mutate, mutate, toString

Methods inherited from class io.jenetics.AbstractAlterer

probability

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.jenetics.Alterer

andThen, compose

Constructor Details

RSMutator

public RSMutator(double probability)

Constructs an alterer with a given recombination probability.

Parameters:

probability - the crossover probability.

Throws:

IllegalArgumentException - if the probability is not in the valid range of [0, 1].

RSMutator

public RSMutator()

Default constructor, with default mutation probability (Alterer.DEFAULT_ALTER_PROBABILITY).

Method Details

mutate

protected MutatorResult<Chromosome<G>> mutate(Chromosome<G> chromosome,
 double p,
 RandomGenerator random)

Description copied from class: Mutator

Mutates the given chromosome.

Overrides:

mutate in class Mutator<G extends Gene<?,G>,C extends Comparable<? super C>>

Parameters:

chromosome - the chromosome to mutate

p - the mutation probability for the underlying genetic objects

random - the random engine used for the genotype mutation

Returns:

the mutation result

See Also:

• Mutator.mutate(Gene, RandomGenerator)