Package dev.nm.stat.random.rng.univariate.normal

Class Zignor2005

java.lang.Object

dev.nm.stat.random.rng.univariate.normal.Zignor2005

All Implemented Interfaces:

RandomStandardNormalGenerator, RandomNumberGenerator, Seedable

Direct Known Subclasses:

StandardNormalRNG

public class Zignor2005
extends Object
implements RandomStandardNormalGenerator

This is an improved version of the Ziggurat algorithm as proposed in the reference.

Constructor Summary

Constructors

Constructor	Description
Zignor2005()	Construct an improved Ziggurat random normal generator.
Zignor2005(RandomLongGenerator uniform)	Construct an improved Ziggurat random normal generator.

Method Summary

Modifier and Type	Method	Description
double	nextDouble()	Get the next random double.
void	seed(long... seeds)	Seed the random number/vector/scenario generator to produce repeatable experiments.

Methods inherited from class java.lang.Object

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

Constructor Details

Zignor2005

public Zignor2005(RandomLongGenerator uniform)

Construct an improved Ziggurat random normal generator.

Parameters:

uniform - a uniform random number generator

Zignor2005

public Zignor2005()

Construct an improved Ziggurat random normal generator.

Method Details

seed

public void seed(long... seeds)

Description copied from interface: Seedable

Seed the random number/vector/scenario generator to produce repeatable experiments.

Specified by:

seed in interface Seedable

Parameters:

seeds - the seeds

nextDouble

public double nextDouble()

Description copied from interface: RandomNumberGenerator

Get the next random double.

Specified by:

nextDouble in interface RandomNumberGenerator

Returns:

the next random number