| rvmultinom {rv} | R Documentation |
Generates a random vector from a multinomial sampling model.
rvmultinom(n=1, size=1, prob)
n |
integer, number of random variables to generate |
size |
integer or integer-valued rv: the number of trials (size of each sample) |
prob |
vector (of length at least 3) prior probabilities of successes of each trial (may be constant or an rv object) |
The length of prob determines the number of bins.
The vector prob will be normalized to have sum 1.
If length(prob) is two, rvbinom is called instead.
NOTE. Case of random n or size or prob — not yet
optimized for speed.
A random array of dimensions length(prob) times n.
Jouni Kerman kerman@stat.columbia.edu http://www.stat.columbia.edu/~kerman
Kerman, Jouni and Gelman, Andrew. Manipulating and Summarizing Posterior Simulations Using Random Variable Objects. Technical report, Columbia University, New York.
y <- rvmultinom(n=3, size=1, prob=c(0.20, 0.30, 0.50))