rvbinom {rv} | R Documentation |
Generates a random vector from a binomial sampling model.
rvbinom(n=1, size, prob)
n |
integer, number of random variables to generate |
size |
integer or integer-valued rv: the number of trials (size of each sample) |
prob |
prior probability of success of each trial (may be constant or an rv object) |
rvbinom
generates a random vector with given
length,
the distribution for size and the distribution for the probability of success.
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.
s <- 1+rvpois(1,lambda=3) # A prior distribution on the 'size' parameter. rvbinom(1, size=s, prob=0.5) # The 'size' is random. p <- rvbinom(1, 10, prob=0.5)/10 # Prior probability of success. rvbinom(1, size=10, prob=p) # Now the probability is random. rvbinom(1, size=s, prob=p) # Both the size and the probability are random.