Biased Urn model distributions CRAN Task View: Distributions (http://CRAN.R-project.org/view=Distributions) Statistical models of biased sampling in the form of univariate and multivariate noncentral hypergeometric distributions, including Wallenius' noncentral hypergeometric distribution and Fisher's noncentral hypergeometric distribution (also called extended hypergeometric distribution). See vignette("UrnTheory") for explanation of these distributions. Software Agner Fog <agner@agner.org> Agner Fog GPL 2011-08-07 application/tgz http://CRAN.R-project.org/package=BiasedUrn