jsat.utils.random

Class XORWOW

java.lang.Object

java.util.Random

jsat.utils.random.XORWOW

All Implemented Interfaces:

java.io.Serializable

public class XORWOW
extends java.util.Random

A very fast PRNG that passes the Diehard tests. It has a period of 2¹⁹²−2³²

See: G. Marsaglia. Xorshift RNGs. Journal of Statistical Software, 8, 14:1–9, 2003

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
XORWOW() Creates a new PRNG with a random seed
XORWOW(long seed) Creates a new PRNG

Method Summary

Modifier and Type	Method and Description
double	nextDouble()
long	nextLong()
void	setSeed(long seed)

Methods inherited from class java.util.Random

doubles, doubles, doubles, doubles, ints, ints, ints, ints, longs, longs, longs, longs, nextBoolean, nextBytes, nextFloat, nextGaussian, nextInt, nextInt

Methods inherited from class java.lang.Object

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

Constructor Detail

XORWOW

public XORWOW()

Creates a new PRNG with a random seed

XORWOW

public XORWOW(long seed)

Creates a new PRNG

Parameters:

seed - the seed that controls the initial state of the PRNG

See Also:

setSeed(long)

Method Detail

setSeed

public void setSeed(long seed)

Overrides:

setSeed in class java.util.Random

nextLong

public long nextLong()

Overrides:

nextLong in class java.util.Random

nextDouble

public double nextDouble()

Overrides:

nextDouble in class java.util.Random