Package nl.tudelft.simulation.jstats.streams

Provides classes and interfaces for streams used in the JSTATS package. The differences between these generators is expressed by their quality criteria as expressed by (Knuth, 1980):

• the computational speed of the algorithm used
• the period of recurrence

The following table illustrates the streams implemented in the JSTATS package. The speed is computed on a 32-bit Intel based Pentium processor on JDK1.4.2_04 by drawing 10⁷ double values from the particular stream.

Speeds of the streams

	SPEED (milliseconds)	PERIOD
LC64Generator	1292	1.8 x 1019
Java2Random	1452	2.8 x 1014
DX-120	1703	0.679 x 101120
MersenneTwister	2153	1 x 106001.6

Copyright (c) 2002-2023 Delft University of Technology, Jaffalaan 5, 2628 BX Delft, the Netherlands. All rights reserved. See for project information https://simulation.tudelft.nl. The DSOL project is distributed under a three-clause BSD-style license, which can be found at https://https://simulation.tudelft.nl/dsol/docs/latest/license.html.

Author:

Alexander Verbraeck, Peter Jacobs

Interface Summary

Interface	Description
StreamInterface	The StreamInterface defines the streams to be used within the JSTATS package.

Class Summary

Class	Description
DX120Generator	The DX-120-4 pseudo random number generator.
Java2Random	The Java2Random is an extension of the java.util.Random class which implements the StreamInterface.
MersenneTwister	A java implementation of the Mersenne Twister pseudo random number generator.
RandomNumberGenerator	The RandomNumberGenerator class provides an abstract basis for all pseudo random number generators.

Exception Summary

Exception	Description
StreamException	Exception for the Random Number Generators.