rnoncenhypergeom: Generate Random Draw from Noncentral Hypergeometric Distribution
Description
This function generates random draws from the Noncentral
Hypergeometric distribution.
Usage
rnoncenhypergeom(n, n1, n2, m1, psi)
Arguments
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.
Value
An list of n random draws from the distribution.
source
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.
Details
The Noncentral Hypergeometric is particularly useful for conditional
inference for $(2 \times 2)$ 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.