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monomvn (version 1.9-1)

rwish: Draw from the Wishart Distribution

Description

Random generation from the Wishart distribution.

Usage

rwish(v, S)

Arguments

v
degrees of freedom (scalar)
S
inverse scale matrix $(p \times p)$

Value

  • Returns generates one random draw from the distribution which is a matrix with the same dimensions as S

Details

The mean of a Wishart random variable with v degrees of freedom and inverse scale matrix S is $vS$.

References

This was copied from the MCMCpack package

Examples

Run this code
draw <- rwish(3, matrix(c(1,.3,.3,1),2,2))

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