smile.interpolation

Class AbstractInterpolation

java.lang.Object

smile.interpolation.AbstractInterpolation

All Implemented Interfaces:

java.io.Serializable, Interpolation

Direct Known Subclasses:

CubicSplineInterpolation1D, LinearInterpolation

public abstract class AbstractInterpolation
extends java.lang.Object
implements Interpolation

Abstract base class of one-dimensional interpolation methods.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AbstractInterpolation(double[] x, double[] y) Constructor.

Method Summary

Modifier and Type	Method and Description
double	interpolate(double x) Given a value x, return an interpolated value.
abstract double	rawinterp(int jlo, double x) Subclasses provide this as the actual interpolation method.
int	search(double x) Given a value x, return a value j such that x is (insofar as possible) centered in the subrange xx[j..j+m-1], where xx is the stored data.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractInterpolation

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

Constructor. Setup for interpolation on a table of x and y of length m. The value in x must be monotonic, either increasing or decreasing.

Method Detail

interpolate

public double interpolate(double x)

Description copied from interface: Interpolation

Given a value x, return an interpolated value.

Specified by:

interpolate in interface Interpolation

search

public int search(double x)

Given a value x, return a value j such that x is (insofar as possible) centered in the subrange xx[j..j+m-1], where xx is the stored data. The returned value is not less than 0, nor greater than n-1, where n is the length of xx.

rawinterp

public abstract double rawinterp(int jlo,
                                 double x)

Subclasses provide this as the actual interpolation method.

Parameters:

jlo - the value jlo is such that x is (insofar as possible) centered in the subrange xx[j..j+m-1], where xx is the stored data.

x - interpolate at this value