Module io.jenetics.base

Package io.jenetics.engine

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

java.lang.Object

io.jenetics.engine.EvolutionParams<G,C>

Type Parameters:

G - the gene type

C - the fitness function result type

All Implemented Interfaces:

Serializable

public final class EvolutionParams<G extends Gene<?,G>,C extends Comparable<? super C>>
extends Object
implements Serializable

This class collects the parameters which control the behaviour of the evolution process. This doesn't include the parameters for the technical execution like the used execution service.

Since:

5.2

Version:

5.2

See Also:

• Engine
• Engine.Builder
• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	EvolutionParams.Builder<G extends Gene<?,G>,C extends Comparable<? super C>>	Builder class for the evolution parameter.

Method Summary

Modifier and Type	Method	Description
Alterer<G,C>	alterer()	Return the used Alterer of the GA.
static <G extends Gene<?, G>, C extends Comparable<? super C>> EvolutionParams.Builder<G,C>	builder()	Create a new evolution parameter builder.
long	maximalPhenotypeAge()	Return the maximal allowed phenotype age.
double	offspringFraction()	Return the offspring fraction.
Selector<G,C>	offspringSelector()	Return the used offspring Selector of the GA.
int	offspringSize()	Return the number of offspring.
int	populationSize()	Return the population size.
Selector<G,C>	survivorsSelector()	Return the used survivor Selector of the GA.
int	survivorsSize()	Return the number of survivors.
EvolutionParams.Builder<G,C>	toBuilder()	Return a new builder object, initialized with this parameters.

Methods inherited from class java.lang.Object

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

Method Details

survivorsSelector

public Selector<G,C> survivorsSelector()

Return the used survivor Selector of the GA.

Returns:

the used survivor Selector of the GA.

offspringSelector

public Selector<G,C> offspringSelector()

Return the used offspring Selector of the GA.

Returns:

the used offspring Selector of the GA.

alterer

public Alterer<G,C> alterer()

Return the used Alterer of the GA.

Returns:

the used Alterer of the GA.

populationSize

public int populationSize()

Return the population size.

Returns:

the population size

offspringFraction

public double offspringFraction()

Return the offspring fraction.

Returns:

the offspring fraction.

maximalPhenotypeAge

public long maximalPhenotypeAge()

Return the maximal allowed phenotype age.

Returns:

the maximal allowed phenotype age

offspringSize

public int offspringSize()

Return the number of offspring. This is a derived property.

Returns:

the offspring count.

survivorsSize

public int survivorsSize()

Return the number of survivors. This is a derived property.

Returns:

the number of survivors

toBuilder

public EvolutionParams.Builder<G,C> toBuilder()

Return a new builder object, initialized with this parameters.

Returns:

a new pre-filled builder object

builder

public static <G extends Gene<?,
G>,
C extends Comparable<? super C>>
EvolutionParams.Builder<G,C> builder()

Create a new evolution parameter builder.

Type Parameters:

G - the gene type

C - the fitness function result type

Returns:

a new parameter builder