Generate Random Variables from a Chi-Square Sampling Model

Generates a random vector from a chi-square sampling model.

rvchisq(n = 1, df, ncp = 0)

Arguments

n

number of variables to generate

df

integer, degrees of freedom, may be random

ncp

non-centrality parameter, may be random

Value

A random vector (rv object) of length n.

Details

If any of the arguments are random, the resulting simulations may have non-Poisson marginal distributions.

References

Kerman, J. and Gelman, A. (2007). Manipulating and Summarizing Posterior Simulations Using Random Variable Objects. Statistics and Computing 17:3, 235-244.

See also vignette("rv").

Author

Jouni Kerman jouni@kerman.com

Examples

 rvchisq(1, df = 3)
#>     mean  sd  1% 2.5% 25% 50% 75% 97.5% 99% sims
#> [1]  2.9 2.2 0.2 0.22 1.2 2.4   4   8.8 9.6  200