rvdiscrete {rv}R Documentation

Generate Random Vectors from a Discrete Sampling Model

Description

Generates random variables from a discrete distribution.

Usage

  rvdiscrete(n=1, x, prob=NULL)

Arguments

n integer: number of scalars to generate
x values of the distribution
prob probabilities (optional, default: all equal)

Details

Computes a random vector of length n, consisting of identicallly distributed discrete random scalars with the discrete distribution with values x and corresponding probabilities prob. If prob is not given, all values are considered equally distributed.

Author(s)

Jouni Kerman kerman@stat.columbia.edu http://www.stat.columbia.edu/~kerman

References

Kerman, Jouni and Gelman, Andrew. Manipulating and Summarizing Posterior Simulations Using Random Variable Objects. Technical report, Columbia University, New York.

Examples

  # 8 people draw a number each from 1..10 with replacement.
  # What is the probability that the highest number of the eight is "10"?
  u <- rvdiscrete(n=8, x=1:10) # 8 iid variables from the discrete uniform 1:10.
  s <- sort(u) # order distribution
  Pr(s[8]==10)

[Package rv version 0.949 Index]