jebl.math
Class OrthogonalLineFunction

java.lang.Object
  jebl.math.OrthogonalLineFunction

All Implemented Interfaces:

UnivariateFunction

public class OrthogonalLineFunction
extends Object
implements UnivariateFunction

converts a multivariate function into a univariate function by keeping all but one argument constant

Author:

Korbinian Strimmer

Constructor Summary

OrthogonalLineFunction(MultivariateFunction func)
construct univariate function from multivariate function

OrthogonalLineFunction(MultivariateFunction func, int selectedDimension, double[] initialArguments)
construct univariate function from multivariate function

Method Summary

double	evaluate(double arg) compute function value
double	getLowerBound() get lower bound of argument
double	getUpperBound() get upper bound of argument
void	selectArgument(int num) use only the specified argument in the constructed univariate function and keep all others constant
void	setAllArguments(double[] start) set (change) values of all arguments (start values)
void	setArgument(double val) set (change) value of a single argument (the one currently active)

Methods inherited from class java.lang.Object

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

Constructor Detail

OrthogonalLineFunction

public OrthogonalLineFunction(MultivariateFunction func)

construct univariate function from multivariate function

Parameters:

func - multivariate function

OrthogonalLineFunction

public OrthogonalLineFunction(MultivariateFunction func,
                              int selectedDimension,
                              double[] initialArguments)

construct univariate function from multivariate function

Parameters:

func - multivariate function

selectedDimension - The selected dimension/argument that the line "runs" along

initialArguments - the initial arguments to the base MultivariateFunction (may be null)

Method Detail

setAllArguments

public void setAllArguments(double[] start)

set (change) values of all arguments (start values)

Parameters:

start - start values

setArgument

public void setArgument(double val)

set (change) value of a single argument (the one currently active)

Parameters:

val - value of argument

selectArgument

public void selectArgument(int num)

use only the specified argument in the constructed univariate function and keep all others constant

Parameters:

num - argument number

evaluate

public double evaluate(double arg)

Description copied from interface: UnivariateFunction

compute function value

Specified by:

evaluate in interface UnivariateFunction

Parameters:

arg - function argument

Returns:

function value

getLowerBound

public double getLowerBound()

Description copied from interface: UnivariateFunction

get lower bound of argument

Specified by:

getLowerBound in interface UnivariateFunction

Returns:

lower bound

getUpperBound

public double getUpperBound()

Description copied from interface: UnivariateFunction

get upper bound of argument

Specified by:

getUpperBound in interface UnivariateFunction

Returns:

upper bound