de.lmu.ifi.dbs.elki.data.synthetic.bymodel.distribution
Class UniformDistribution

java.lang.Object
  de.lmu.ifi.dbs.elki.data.synthetic.bymodel.distribution.UniformDistribution

All Implemented Interfaces:

Distribution

public final class UniformDistribution
extends Object
implements Distribution

Simple uniform distribution class

Author:

Erich Schubert

Field Summary

private double	len Len := max - min
private double	max Maximum
private double	min Minimum
private Random	random The random generator.

Constructor Summary

UniformDistribution(double min, double max, Random random)
Constructor for a uniform distribution on the interval [min, max[

Method Summary

double	explain(double val) Return the PDF of the generators distribution
double	generate() Generate a random value with the generators parameters
double	getMax()
double	getMin()
String	toString() Simple toString explaining the distribution parameters.

Methods inherited from class java.lang.Object

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

Field Detail

min

private double min

Minimum

max

private double max

Maximum

len

private double len

Len := max - min

random

private Random random

The random generator.

Constructor Detail

UniformDistribution

public UniformDistribution(double min,
                           double max,
                           Random random)

Constructor for a uniform distribution on the interval [min, max[

Parameters:

min - Minimum value

max - Maximum value

random - Random generator

Method Detail

explain

public double explain(double val)

Return the PDF of the generators distribution

Specified by:

explain in interface Distribution

Parameters:

val - existing value

Returns:

distribution density

generate

public double generate()

Generate a random value with the generators parameters

Specified by:

generate in interface Distribution

Returns:

new generated value

toString

public String toString()

Simple toString explaining the distribution parameters. Used in describing cluster models.

Specified by:

toString in interface Distribution

Overrides:

toString in class Object

Returns:

description

getMin

public double getMin()

Returns:

the minimum value

getMax

public double getMax()

Returns:

the maximum value