jsat.utils.random

Class XOR128

java.lang.Object

java.util.Random

jsat.utils.random.XOR128

All Implemented Interfaces:

Serializable

public class XOR128
extends Random

A fast PRNG that produces medium quality random numbers that passes the diehard tests. It has a period of 2¹²⁸-1

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

Author:

Edward Raff

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
XOR128() Creates a new PRNG with a random seed
XOR128(long seed) Creates a new PRNG

Method Summary

Modifier and Type	Method and Description
protected int	next(int bits)
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

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

Constructor Detail

XOR128

public XOR128()

Creates a new PRNG with a random seed

XOR128

public XOR128(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 Random

next

protected int next(int bits)

Overrides:

next in class Random

nextLong

public long nextLong()

Overrides:

nextLong in class Random

nextDouble

public double nextDouble()

Overrides:

nextDouble in class Random