Package com.irurueta.numerical.interpolation

Class BarycentricRationalInterpolator

java.lang.Object

com.irurueta.numerical.interpolation.BaseInterpolator

com.irurueta.numerical.interpolation.BarycentricRationalInterpolator

public class BarycentricRationalInterpolator
extends BaseInterpolator

Computes barycentric rational interpolation.

Field Summary

Fields

Modifier and Type	Field	Description
private final int	d	Order of desired approximation.
private final double[]	w	Weights for barycentric rational interpolation.

Fields inherited from class com.irurueta.numerical.interpolation.BaseInterpolator

cor, mm, n, xx, yy

Constructor Summary

Constructors

Constructor	Description
BarycentricRationalInterpolator(double[] x, double[] y, int d)	Constructor.

Method Summary

Modifier and Type	Method	Description
int	getD()	Gets order of desired approximation.
double	interpolate(double x)	Given a value x, returns an interpolated value, using data pointed to by BaseInterpolator.xx and BaseInterpolator.yy.
double	rawinterp(int jlo, double x)	Actual interpolation method.

Methods inherited from class com.irurueta.numerical.interpolation.BaseInterpolator

hunt, locate

Methods inherited from class java.lang.Object

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

Field Details

w

private final double[] w

Weights for barycentric rational interpolation.

d

private final int d

Order of desired approximation.

Constructor Details

BarycentricRationalInterpolator

public BarycentricRationalInterpolator(double[] x,
 double[] y,
 int d)

Constructor.

Parameters:

x - x values to interpolate to. Values in x must be monotonic (either increasing or decreasing)

y - y values to interpolate to.

d - order of desired approximation.

Method Details

getD

public int getD()

Gets order of desired approximation.

Returns:

order of desired approximation.

interpolate

public double interpolate(double x)

Given a value x, returns an interpolated value, using data pointed to by BaseInterpolator.xx and BaseInterpolator.yy.

Overrides:

interpolate in class BaseInterpolator

Parameters:

x - value to obtain interpolation for.

Returns:

interpolated value.

rawinterp

public double rawinterp(int jlo,
 double x)

Actual interpolation method.

Specified by:

rawinterp in class BaseInterpolator

Parameters:

jlo - index where value x to be interpolated in located in the array of xx.

x - value to obtain interpolation for.

Returns:

interpolated value.