Package com.irurueta.numerical.interpolation

Class RationalInterpolator

java.lang.Object

com.irurueta.numerical.interpolation.BaseInterpolator

com.irurueta.numerical.interpolation.RationalInterpolator

public class RationalInterpolator
extends BaseInterpolator

Computes rational interpolation.

Field Summary

Fields

Modifier and Type	Field	Description
private double	dy	An indication of interpolation error on the y values of the last call to BaseInterpolator.interpolate(double).
private static final double	TINY	A small number.

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

cor, mm, n, xx, yy

Constructor Summary

Constructors

Constructor	Description
RationalInterpolator(double[] x, double[] y)	Constructor.
RationalInterpolator(double[] x, double[] y, int m)	Constructor.

Method Summary

Modifier and Type	Method	Description
double	getDy()	Gets an indication of the error of interpolation on the y values.
double	rawinterp(int jl, double x)	Actual interpolation method.

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

hunt, interpolate, locate

Methods inherited from class java.lang.Object

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

Field Details

TINY

private static final double TINY

A small number.

See Also:

• Constant Field Values

dy

private double dy

An indication of interpolation error on the y values of the last call to BaseInterpolator.interpolate(double).

Constructor Details

RationalInterpolator

public RationalInterpolator(double[] x,
 double[] y,
 int m)

Constructor.

Parameters:

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

y - y values to interpolate to.

m - length of x's and y's to take into account. Must be less or equal than x or y length.

Throws:

IllegalArgumentException - if x or y have invalid length or m exceeds length of x or y.

RationalInterpolator

public RationalInterpolator(double[] x,
 double[] y)

Constructor.

Parameters:

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

y - y values to interpolate to.

Throws:

IllegalArgumentException - if x or y have invalid length or m exceeds length of x or y.

Method Details

getDy

public double getDy()

Gets an indication of the error of interpolation on the y values.

Returns:

indication of error of interpolation.

rawinterp

public double rawinterp(int jl,
 double x)
                 throws InterpolationException

Actual interpolation method.

Specified by:

rawinterp in class BaseInterpolator

Parameters:

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

x - value to obtain interpolation for.

Returns:

interpolated value.

Throws:

InterpolationException - if interpolation fails.