On 03/09/2015 12:41 PM, Anamika Chaudhuri wrote: > I put in the matrix at which I want the density as S. I was wondering > what is W then?
You need to read the help page. The matrix at which you want the density is W. S is a parameter of the distribution. Duncan Murdoch > > Thanks > Anamika > > On Thu, Sep 3, 2015 at 12:28 PM, Duncan Murdoch > <murdoch.dun...@gmail.com <mailto:murdoch.dun...@gmail.com>> wrote: > > 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 > > ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
