net.sourceforge.cilib.functions.continuous.unconstrained
Class Bukin4

java.lang.Object
  net.sourceforge.cilib.functions.Function
      net.sourceforge.cilib.functions.ContinuousFunction
          net.sourceforge.cilib.functions.continuous.unconstrained.Bukin4

All Implemented Interfaces:

Serializable, Cloneable

public class Bukin4
extends ContinuousFunction
implements Serializable

Bukin 4 Function.

Reference: S.K. Mishra, Some New Test Functions for Global Optimization and Performance of Repulsive Particle Swarm Methods North-Eastern Hill University, India, 2002

Minimum:

• f(x*) = 0.0
• x* = (-10,0)
• for x_1 in [-15,-5], x_2 in [-3,3]

Characteristics:

• Only defined for 2 dimensions
• Seperable
• Nonregular

Author:

Andries Engelbrecht

See Also:

Serialized Form

Constructor Summary

Bukin4()

Method Summary

double	evaluate(Vector x) Evaluate the function with the given Vector as input.
Bukin4	getClone() Create a cloned copy of the current object and return it.
Object	getMinimum() Accessor for the function minimum.

Methods inherited from class net.sourceforge.cilib.functions.ContinuousFunction

evaluate, getMaximum

Methods inherited from class net.sourceforge.cilib.functions.Function

getBehavioralDomainRegistry, getDimension, getDomain, getDomainRegistry, setBehavioralDomain, setBehaviouralDomainRegistry, setDomain

Methods inherited from class java.lang.Object

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

Constructor Detail

Bukin4

public Bukin4()

Method Detail

getClone

public Bukin4 getClone()

Description copied from class: ContinuousFunction

Create a cloned copy of the current object and return it. In general the created copy will be a deep copy of the provided instance. As a result this operation an be quite expensive if used incorrectly.

Specified by:

getClone in interface Cloneable

Specified by:

getClone in class ContinuousFunction

Returns:

An exact clone of the current object instance.

See Also:

Object.clone()

getMinimum

public Object getMinimum()

Description copied from class: ContinuousFunction

Accessor for the function minimum. This is the minimum value of the function in the given domain.

Overrides:

getMinimum in class ContinuousFunction

Returns:

The minimum function value.

evaluate

public double evaluate(Vector x)

Description copied from class: ContinuousFunction

Evaluate the function with the given Vector as input.

Specified by:

evaluate in class ContinuousFunction

Parameters:

x - The input Vector.

Returns:

The value of the evaluation.