jmetal.problems.ZDT
Class ZDT4

java.lang.Object
  jmetal.core.Problem
      jmetal.problems.ZDT.ZDT4

All Implemented Interfaces:

java.io.Serializable

public class ZDT4
extends Problem

Class representing problem ZDT4

See Also:

Serialized Form

Field Summary

Fields inherited from class jmetal.core.Problem

length_, lowerLimit_, numberOfConstraints_, numberOfObjectives_, numberOfVariables_, problemName_, solutionType_, upperLimit_

Constructor Summary

ZDT4(java.lang.String solutionType)
Constructor.

ZDT4(java.lang.String solutionType, java.lang.Integer numberOfVariables)
Creates a instance of problem ZDT4.

Method Summary

double	evalG(XReal x) Returns the value of the ZDT4 function G.
double	evalH(double f, double g) Returns the value of the ZDT4 function H.
void	evaluate(Solution solution) Evaluates a solution

Methods inherited from class jmetal.core.Problem

evaluateConstraints, getLength, getLowerLimit, getName, getNumberOfBits, getNumberOfConstraints, getNumberOfObjectives, getNumberOfVariables, getPrecision, getPrecision, getSolutionType, getUpperLimit, setNumberOfVariables, setPrecision, setSolutionType

Methods inherited from class java.lang.Object

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

Constructor Detail

ZDT4

public ZDT4(java.lang.String solutionType)
     throws java.lang.ClassNotFoundException

Constructor. Creates a default instance of problem ZDT4 (10 decision variables)

Parameters:

solutionType - The solution type must "Real", "BinaryReal, and "ArrayReal".

Throws:

java.lang.ClassNotFoundException

ZDT4

public ZDT4(java.lang.String solutionType,
            java.lang.Integer numberOfVariables)

Creates a instance of problem ZDT4.

Parameters:

numberOfVariables - Number of variables.

solutionType - The solution type must "Real", "BinaryReal, and "ArrayReal".

Method Detail

evaluate

public void evaluate(Solution solution)
              throws JMException

Evaluates a solution

Specified by:

evaluate in class Problem

Parameters:

solution - The solution to evaluate

Throws:

JMException

evalG

public double evalG(XReal x)
             throws JMException

Returns the value of the ZDT4 function G.

Parameters:

x - Solution

Throws:

JMException

evalH

public double evalH(double f,
                    double g)

Returns the value of the ZDT4 function H.

Parameters:

f - First argument of the function H.

g - Second argument of the function H.