Class BetaPrime

java.lang.Object

eduni.distributions.Generator

eduni.distributions.Beta

eduni.distributions.BetaPrime

All Implemented Interfaces:

ContinuousGenerator, Seedable

public class BetaPrime
extends Beta

A random number generator based on the beta prime distribution.

Field Summary

Fields inherited from class eduni.distributions.Beta

shape_a, shape_b

Fields inherited from class eduni.distributions.Generator

distrib

Constructor Summary

Constructors

Constructor	Description
BetaPrime(double shape_a, double shape_b)	the seed is automatically provided by the SeedGenerator
BetaPrime(double shape_a, double shape_b, long seed)	The constructor with which a specific seed is set for the random number generator

Method Summary

Modifier and Type	Method	Description
double	sample()	Generate a new random number.

Methods inherited from class eduni.distributions.Generator

getSeed, reseed, setSeed

Methods inherited from class java.lang.Object

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

Methods inherited from interface eduni.distributions.Seedable

getSeed, reseed, setSeed

Constructor Details

BetaPrime

public BetaPrime(double shape_a,
 double shape_b)

the seed is automatically provided by the SeedGenerator

Parameters:

shape_a - The a shape parameter of the distribution

shape_b - The b shape parameter of the distribution

BetaPrime

public BetaPrime(double shape_a,
 double shape_b,
 long seed)

The constructor with which a specific seed is set for the random number generator

Parameters:

shape_a - The a shape parameter of the distribution

shape_b - The b shape parameter of the distribution

seed - The initial seed for the generator, two instances with the same seed will generate the same sequence of numbers

Method Details

sample

public double sample()

Generate a new random number.

Specified by:

sample in interface ContinuousGenerator

Overrides:

sample in class Beta

Returns:

The next random number in the sequence