de.lmu.ifi.dbs.elki.math.statistics

Class EpanechnikovKernelDensityFunction

java.lang.Object

de.lmu.ifi.dbs.elki.math.statistics.EpanechnikovKernelDensityFunction

All Implemented Interfaces:

KernelDensityFunction

public final class EpanechnikovKernelDensityFunction
extends Object
implements KernelDensityFunction

Epanechnikov kernel density estimator.

Field Summary

Fields

Modifier and Type	Field and Description
static EpanechnikovKernelDensityFunction	KERNEL Static instance.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	EpanechnikovKernelDensityFunction() Private, empty constructor.

Method Summary

Methods

Modifier and Type	Method and Description
double	density(double delta) Density contribution of a point at the given relative distance delta.

Methods inherited from class java.lang.Object

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

Field Detail

KERNEL

public static final EpanechnikovKernelDensityFunction KERNEL

Static instance.

Constructor Detail

EpanechnikovKernelDensityFunction

private EpanechnikovKernelDensityFunction()

Private, empty constructor. Use the static instance!

Method Detail

density

public double density(double delta)

Description copied from interface: KernelDensityFunction

Density contribution of a point at the given relative distance delta.

Specified by:

density in interface KernelDensityFunction

Parameters:

delta - Relative distance

Returns:

density contribution