ASA183
Wichman-Hill Random Number Generator

ASA183 is a Python library which implements a random number generator (RNG), by Wichman and Hill.

ASA183 is Applied Statistics Algorithm 183. Source code for many Applied Statistics Algorithms is available through STATLIB.

Languages:

ASA183 is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.

Related Data and Programs:

HALTON, a Python library which computes elements of a Halton Quasi Monte Carlo (QMC) sequence, using a simple interface.

NORMAL, a Python library which computes elements of a sequence of pseudorandom normally distributed values.

RANDLC, a Python library which implements a random number generator (RNG) used by the NAS Benchmark programs.

RANDOM_DATA, a Python library which uses a random number generator (RNG) to sample points corresponding to various probability density functions (PDF's), spatial dimensions, and geometries, including the M-dimensional cube, ellipsoid, simplex and sphere.

RNGLIB, a Python library which implements a random number generator (RNG) with splitting facilities, allowing multiple independent streams to be computed, by L'Ecuyer and Cote.

UNIFORM, a Python library which computes elements of a sequence of pseudorandom uniformly distributed values.

VAN_DER_CORPUT, a Python library which computes elements of a 1D van der Corput Quasi Monte Carlo (QMC) sequence using a simple interface.

Reference:

1. Pierre LEcuyer,
   Efficient and Portable Combined Random Number Generators,
   Communications of the ACM,
   Volume 31, Number 6, June 1988, pages 742-751.
2. Brian Wichmann, David Hill,
   Algorithm AS 183: An Efficient and Portable Pseudo-random Number Generator,
   Applied Statistics,
   Volume 31, Number 2, 1982, pages 188-190.

Source Code:

• r8_random.py, returns a pseudorandom number between 0 and 1.
• r8_uni.py, returns a pseudorandom number between 0 and 1.
• timestamp.py, prints the YMDHMS date as a timestamp.

Examples and Tests:

• asa183_test.py, calls all the tests.
• asa183_test.sh, runs all the tests.
• asa183_test.txt, the output file.

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