com.numericalmethod.suanshu.stats.random.univariate.uniform

Class MWC8222

java.lang.Object

com.numericalmethod.suanshu.stats.random.univariate.uniform.MWC8222

All Implemented Interfaces:

RandomLongGenerator, RandomNumberGenerator, java.io.Serializable

public class MWC8222
extends java.lang.Object
implements RandomLongGenerator

Marsaglia's MWC256 (also known as MWC8222) is a multiply-with-carry generator. It has a period of 2^8222 and fares well in tests of randomness. It is also extremely fast, between 2 and 3 times faster than the Mersenne Twister.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MWC8222() Construct a random number generator to sample uniformly from [0, 1].

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

MWC8222

public MWC8222()

Construct a random number generator to sample uniformly from [0, 1].

Method Detail

seed

public void seed(long... seeds)

Description copied from interface: RandomNumberGenerator

Seed the random number generator to produce repeatable sequences.

Specified by:

seed in interface RandomNumberGenerator

Parameters:

seeds - the seeds

nextLong

public long nextLong()

Description copied from interface: RandomLongGenerator

Get the next random long.

Specified by:

nextLong in interface RandomLongGenerator

Returns:

the next random long

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