Generate Random Variables from a Gamma Sampling Model

Description

Generates random variables from a Gamma sampling model.

Usage

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  rvgamma(n=1, shape, rate = 1, scale = 1/rate)
  rvngamma(n=1, shape, rate = 1, scale = 1/rate)

Arguments

n

integer: number of variables to generate

shape

shape parameter, may be a rv

rate

rate parameter, may be a rv

scale

inverse of rate, may be specified optionally instead of rate

Details

rvngamma(n, shape, rate) is equivalent to rvgamma(n, 1/3 + shape, rate).

Value

A random vector (rv object).

Author(s)

Jouni Kerman jouni@kerman.com

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").

Examples

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  round(rvmedian(rvngamma(n=1, shape=1:10, rate=1)), 1) ## close to 1:10

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