pal.math
Class EvaluationCounter

java.lang.Object
  pal.math.EvaluationCounter

All Implemented Interfaces:

MultivariateFunction

public class EvaluationCounter
extends java.lang.Object
implements MultivariateFunction

A utiltity class that can be used to track the number of evaluations of a general function

Author:

Matthew Goode

Constructor Summary

EvaluationCounter(MultivariateFunction base)

Method Summary

double	evaluate(double[] argument) compute function value
int	getEvaluationCount()
double	getLowerBound(int n) get lower bound of argument n
int	getNumArguments() get number of arguments
OrthogonalHints	getOrthogonalHints()
double	getUpperBound(int n) get upper bound of argument n
void	reset()

Methods inherited from class java.lang.Object

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

Constructor Detail

EvaluationCounter

public EvaluationCounter(MultivariateFunction base)

Method Detail

evaluate

public final double evaluate(double[] argument)

Description copied from interface: MultivariateFunction

compute function value

Specified by:

evaluate in interface MultivariateFunction

Parameters:

argument - function argument (vector)

Returns:

function value

reset

public final void reset()

getEvaluationCount

public final int getEvaluationCount()

getNumArguments

public final int getNumArguments()

Description copied from interface: MultivariateFunction

get number of arguments

Specified by:

getNumArguments in interface MultivariateFunction

Returns:

number of arguments

getLowerBound

public final double getLowerBound(int n)

Description copied from interface: MultivariateFunction

get lower bound of argument n

Specified by:

getLowerBound in interface MultivariateFunction

Parameters:

n - argument number

Returns:

lower bound

getUpperBound

public final double getUpperBound(int n)

Description copied from interface: MultivariateFunction

get upper bound of argument n

Specified by:

getUpperBound in interface MultivariateFunction

Parameters:

n - argument number

Returns:

upper bound

getOrthogonalHints

public final OrthogonalHints getOrthogonalHints()

Specified by:

getOrthogonalHints in interface MultivariateFunction

Returns:

an Orthogonal Hints object that can be used by Orthogonal based optimisers to get information about the function