Java Distribution Functions

A java library of distributions functions based on the R distribution functions.

This code based on an auto translation. The translation isn't entirely pretty (especially since some of the C code was originally translated from Fortran), but it seems to work. Classes implement the PDF, CDF, and (usually) quantile and random variate generation for the following distributions:

beta	hypergeometric	normal
binomial	logistic	poisson
cauchy	lognormal	signrank
chisquare	negative_binomial	t
exponential	noncentral_beta	tukey
f	noncentral_chisquare	uniform
gamma	noncentral_f	weibull
geometric	noncentral_t	wilcox

The java code, compiled classes, and (rudimentary) javadoc documentation is available as a jar file from

http://sourceforge.net/project/showfiles.php?group_id=16634

Comments:

These functions compile without error, but are mostly untested.
The javadoc documentation is very rudimentary. Additional documentation is available in the comments copied from the original c code.
Other than grouping the PDF, CDF, etc into a single class for each distribution, the files don't (yet) make much use of OO design.
Most of the credit for these function rightly goes to Ross Ihaka for putting the C library together.

Patches, comments, etc welcome. Please submit at the SourceForge project page

Java Distribution Functions

News

2007-05-19 - Updated to use jakarta commons libraries and with JUnit testing.

2002-04-19 - Now Hosted At