nr
Class PolynomialExtrapolator

java.lang.Object
  nr.PolynomialExtrapolator

All Implemented Interfaces:

Extrapolator

public class PolynomialExtrapolator
extends java.lang.Object
implements Extrapolator

Extrapolator based on pzextr in Numberical Recipes section 16.4

Author:

Daniel Wachsstock

Constructor Summary

PolynomialExtrapolator()
Create a new instance of PolynomialExtrapolator with a default initial size.

PolynomialExtrapolator(int n)
Create a new instance of PolynomialExtrapolator with initial tableau size n

Method Summary

void	add(double x, Vec y, Vec dy) add a new data set to the extrapolation
double	getTarget() the target x value
void	reset() reset the extrapolation (discard all previous points)
void	setTarget(double x) change the target

Methods inherited from class java.lang.Object

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

Constructor Detail

PolynomialExtrapolator

public PolynomialExtrapolator(int n)

Create a new instance of PolynomialExtrapolator with initial tableau size n

PolynomialExtrapolator

public PolynomialExtrapolator()

Create a new instance of PolynomialExtrapolator with a default initial size.

Method Detail

add

public void add(double x,
                Vec y,
                Vec dy)

Description copied from interface: Extrapolator

add a new data set to the extrapolation

Specified by:

add in interface Extrapolator

Parameters:

x - the input x value

y - the input y value. On return, is updated to the value of y extrapolated to x == target X.

dy - on output, updated to the error estimate in each element of y. If dy == null, then is ignored.

reset

public void reset()

Description copied from interface: Extrapolator

reset the extrapolation (discard all previous points)

Specified by:

reset in interface Extrapolator

setTarget

public void setTarget(double x)

Description copied from interface: Extrapolator

change the target

Specified by:

setTarget in interface Extrapolator

Parameters:

x - the new target x

getTarget

public double getTarget()

Description copied from interface: Extrapolator

the target x value

Specified by:

getTarget in interface Extrapolator

Returns:

the target