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

java.lang.Object
  extended by net.sourceforge.cilib.functions.Function
      extended by net.sourceforge.cilib.functions.ContinuousFunction
          extended by net.sourceforge.cilib.functions.continuous.unconstrained.Damavandi
All Implemented Interfaces:
Serializable, Cloneable

public class Damavandi
extends ContinuousFunction

The Damavandi function obtained from N. Damavandi, S. Safavi-Naeini, "A hybrid evolutionary programming method for circuit optimization".

Global Minimum: f(x,y) = 0; (x,y) = (2, 2) Note that if (x,y) = (2,2), then the function results in division by 0 Local Minimum: f(x,y) = 2; (x,y) = (7, 7)

Characteristics:

Author:
Andries Engelbrecht
See Also:
Serialized Form

Constructor Summary
Damavandi()
          Create a new instance of Damavandi.
 
Method Summary
 double evaluate(Vector x)
          Evaluate the function with the given Vector as input.
 Damavandi getClone()
          Create a cloned copy of the current object and return it.
 Object getMinimum()
          Get the minimum of the function.
 
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

Damavandi

public Damavandi()
Create a new instance of Damavandi. Default domain is defined to be R(0, 12)^2.

Method Detail

getClone

public Damavandi 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()
Get the minimum of the function. It is defined to be a value of 0.0.

Overrides:
getMinimum in class ContinuousFunction
Returns:
The minimum function value.

evaluate

public double evaluate(Vector x)
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.


Copyright © 2009 CIRG. All Rights Reserved.