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

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

All Implemented Interfaces:

Serializable, Cloneable

public class Michalewicz
extends ContinuousFunction

Michalewicz funtion 12.

Reference: http://www.geatbx.com/docu/fcnindex-01.html#TopOfPage

Minimum:

• if n=5 then f(x*) = -4.687
• if n=10 then f(x*) = -9.66
• for x_i in [0, pi]

Characteristics:

• Multi-modal
• Has n! local minima
• Non seperable

Author:

engel

See Also:

Serialized Form

Constructor Summary

Michalewicz()
Creates a new instance of EpistaticMichalewicz.

Method Summary

double	evaluate(Vector input) Evaluate the function with the given Vector as input.
Michalewicz	getClone() Create a cloned copy of the current object and return it.
int	getM() Get the current value of M.
Object	getMinimum() Accessor for the function minimum.
void	setM(int m) Set the value of M.

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

Michalewicz

public Michalewicz()

Creates a new instance of EpistaticMichalewicz.

Method Detail

getClone

public Michalewicz getClone()

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()

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 input)

Evaluate the function with the given Vector as input.

Specified by:

evaluate in class ContinuousFunction

Parameters:

input - The input Vector.

Returns:

The value of the evaluation.

getM

public int getM()

Get the current value of M.

Returns:

The value of M.

setM

public void setM(int m)

Set the value of M.

Parameters:

m - The value to set.