nr
Interface Extrapolator

All Known Implementing Classes:

PolynomialExtrapolator

public interface Extrapolator

implements an extrapolation calculation routine for a vector function. Based on routines pzextr and rzextr from Numerical Recipes section 16.4. Takes a series of doubles, x and corresponding Vec values, y, and extrapolates down to a target x.

Author:

Daniel Wachsstock

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

Method Detail

add

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

add a new data set to the extrapolation

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.

setTarget

void setTarget(double x)

change the target

Parameters:

x - the new target x

getTarget

double getTarget()

the target x value

Returns:

the target

reset

void reset()

reset the extrapolation (discard all previous points)