CreepMutation.java
package net.bmahe.genetics4j.core.spec.mutation;
import org.apache.commons.lang3.Validate;
import org.immutables.value.Value;
import net.bmahe.genetics4j.core.spec.statistics.distributions.Distribution;
import net.bmahe.genetics4j.core.spec.statistics.distributions.NormalDistribution;
@Value.Immutable
public abstract class CreepMutation implements MutationPolicy {
@Value.Parameter
public abstract double populationMutationProbability();
@Value.Parameter
public abstract Distribution distribution();
@Value.Check
protected void check() {
Validate.inclusiveBetween(0.0, 1.0, populationMutationProbability());
}
public static CreepMutation of(final double populationMutationProbability, final Distribution distribution) {
return ImmutableCreepMutation.of(populationMutationProbability, distribution);
}
public static CreepMutation ofNormal(final double populationMutationProbability, final double mean,
final double standardDeviation) {
return ImmutableCreepMutation.of(populationMutationProbability, NormalDistribution.of(mean, standardDeviation));
}
}