[R] How to use dwish in MCMCpack in R

Duncan Murdoch murdoch.duncan at gmail.com
Thu Sep 3 18:28:20 CEST 2015

On 03/09/2015 9:29 AM, Anamika Chaudhuri wrote:
> Hi All:
> I am trying to use the dwish function in the MCMCpack in R
> dwish(W, v, S) where
> Arguments
> W-Positive definite matrix W
> v-Degrees of freedom (scalar).
> S-Inverse scale matrix
> How do I determine W, the positive definite matrix. The matrix provided in
> the documentation doesnot help.

Your question doesn't make sense.  You want to compute the density of a
Wishart distribution.  That's a distribution of matrices.  So you just
put in the matrix at which you want to compute the density.

Duncan Murdoch

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