ranBin2 {trialr} | R Documentation |
Sample pairs of correlated binary events
Description
This function is reproduced from the binarySimCLF
package
on CRAN. The original package appears no longer to be maintained.
View the original source at:
https://github.com/cran/binarySimCLF/blob/master/R/ranBin2.R
Usage
ranBin2(nRep, u, psi)
Arguments
nRep |
Number of simulated event pairs, positive integer. |
u |
Mean event probabilities, expressed as a vector of length 2. E.g.
to simulate associated bivariate events with probabilities 80
|
psi |
Odds ratio, number. This parameter controls the strength of
association. Use |
Value
Matrix of events represented as 0s and 1s, with nRep
rows
and 2 columns. The first column is the incidence of event 1.
Examples
probs <- c(0.8, 0.3)
s <- ranBin2(1000, probs, psi=0.2) # 1000 pairs of outcomes
cor(s) # Negatively correlated because psi < 1
colMeans(s) # Event rates as expected
[Package trialr version 0.1.6 Index]