SciRuby/sciruby — Issue #5: Complete set of common probability distributions
Author: mohawkjohn
Created: 2011-11-01 18:51:01+00:00
State: open
Labels: approved feature

Claudio Bustos' [distribution](http://github.com/clbustos/distribution) gem supplies the probability distributions for SciRuby.

Some of these have already been implemented (e.g., normal, chisquare, hypergeometric, logistic, _F_, exponential, binomial, bivariate normal, Poisson, Student's _t_, beta, gamma).

Others have not. For example, multivariate normal and lognormal are both needed.

[See a list of already-implemented distributions.](https://github.com/clbustos/distribution/tree/master/lib/distribution) Make sure to look at existing distributions for a template. The goal is to eventually implement each in Java, pure Ruby, and C (i.e., GSL or statistics2).