Package smile.interpolation

Class LinearInterpolation

java.lang.Object

smile.interpolation.AbstractInterpolation

smile.interpolation.LinearInterpolation

All Implemented Interfaces:

Serializable, Interpolation

public class LinearInterpolation
extends AbstractInterpolation

Piecewise linear interpolation. Linear interpolation, sometimes known as lerp, is quick and easy, but it is not very precise. Another disadvantage is that the interpolant is not differentiable at the control points x.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
LinearInterpolation(double[] x, double[] y)	Constructor.

Method Summary

Modifier and Type	Method	Description
double	rawinterp(int j, double x)	Subclasses provide this as the actual interpolation method.
String	toString()

Methods inherited from class smile.interpolation.AbstractInterpolation

interpolate, search

Methods inherited from class java.lang.Object

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

Constructor Details

LinearInterpolation

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

Constructor.

Parameters:

x - the tabulated points.

y - the function values at x.

Method Details

rawinterp

public double rawinterp(int j,
 double x)

Description copied from class: AbstractInterpolation

Subclasses provide this as the actual interpolation method.

Specified by:

rawinterp in class AbstractInterpolation

Parameters:

j - 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

Returns:

the raw interpolated value.

toString

public String toString()

Overrides:

toString in class Object