com.illumon.numerics.interpolation

Class Interpolator

java.lang.Object

com.illumon.numerics.interpolation.Interpolator

public class Interpolator
extends Object

Created by IntelliJ IDEA. User: dkent Date: Nov 5, 2007 Time: 9:26:25 AM

A clean interface for performing interpolations. This is intentionaly designed to be similar to the Matlab "interpolate" command.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Interpolator.InterpolationAlgorithm

Method Summary

Modifier and Type	Method and Description
static double[]	interpolate(double[] x, double[] y, double[] xi, Interpolator.InterpolationAlgorithm method, boolean extrapolate) Interpolates input data and evaluates the interpolation at a set of desired points.

Methods inherited from class java.lang.Object

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

Method Detail

interpolate

public static double[] interpolate(double[] x,
                                   double[] y,
                                   double[] xi,
                                   Interpolator.InterpolationAlgorithm method,
                                   boolean extrapolate)

Interpolates input data and evaluates the interpolation at a set of desired points.

Parameters:

x - input x data.

y - input y data.

xi - x points to evaluate the interpolation at.

method - interpolation method to use.

extrapolate - true if extrapolation is to be used for values outside of the x range; false if values outside the x range should return NaN.

Returns:

y values interpolated at points xi if xi is in range(x), and y values extrapolated based on the extrapolate flag if xi is not in range(x).