rnoncenhypergeom {MCMCpack} | R Documentation |
This function generates random draws from the Noncentral Hypergeometric distribution.
rnoncenhypergeom(n, n1, n2, m1, psi)
n |
The number of draws to make from the distribution. |
n1 |
The size of group one. |
n2 |
The size of group two. |
m1 |
The observed number of positive outcomes (in both groups). |
psi |
Odds ratio. |
The Noncentral Hypergeometric is particularly useful for conditional inference for (2 x 2) tables. We use the parameterization and algorithms of Liao and Rosen (2001). The underlying R code is based on their published code. See their article for details of the parameterization.
An list of n
random draws from the distribution.
L. G. Liao and Ori Rosen. 2001. ``Fast and Stable Algorithms for Computing and Sampling From the Noncentral Hypergeometric Distribution." The American Statistician. 55: 366-369.
rnoncenhypergeom(1, 500, 500, 500, 6.0)