org.jenetics

Class ExponentialScaler

java.lang.Object

org.jenetics.ExponentialScaler

All Implemented Interfaces:

Serializable, Function<Double,Double>

public final class ExponentialScaler
extends Object
implements Function<Double,Double>, Serializable

Implements an exponential fitness scaling, whereby all fitness values are modified the following way.

.

Since:

1.0

Version:

2.0

Author:

Franz Wilhelmstötter

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static ExponentialScaler	SQR_SCALER
static ExponentialScaler	SQRT_SCALER

Constructor Summary

Constructors

Constructor and Description
ExponentialScaler(double c) Create a new FitnessScaler.
ExponentialScaler(double b, double c) Create a new FitnessScaler.
ExponentialScaler(double a, double b, double c) Create a new FitnessScaler.

Method Summary

Modifier and Type	Method and Description
Double	apply(Double value)
boolean	equals(Object obj)
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Field Detail

SQR_SCALER

public static final ExponentialScaler SQR_SCALER

SQRT_SCALER

public static final ExponentialScaler SQRT_SCALER

Constructor Detail

ExponentialScaler

public ExponentialScaler(double a,
                         double b,
                         double c)

Create a new FitnessScaler.

Parameters:

a -

fitness = (a * fitness + b) ^ c

b -

fitness = (a * fitness + b) ^ c

c -

fitness = (a * fitness + b) ^ c

ExponentialScaler

public ExponentialScaler(double b,
                         double c)

Create a new FitnessScaler.

Parameters:

b -

fitness = (1 * fitness + b) ^ c

c -

fitness = (1 * fitness + b) ^ c

ExponentialScaler

public ExponentialScaler(double c)

Create a new FitnessScaler.

Parameters:

c -

fitness = (1 * fitness + 0) ^ c

Method Detail

apply

public Double apply(Double value)

Specified by:

apply in interface Function<Double,Double>

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