[R] clustering: Multivariate t mixtures

[Nicholas Lewin-Koh]

Hi,
Actually that was my plan was to implement a new flexmix class.
Thanks for the pointer to the jss paper, that will be helpful.

Nicholas 
On Thu, 8 Sep 2005 23:07:13 +0200, "Achim Zeileis"
<Achim.Zeileis at wu-wien.ac.at> said:
> On Thu, 08 Sep 2005 15:38:55 -0500 Nicholas Lewin-Koh wrote:
> 
> > Hi,
> > Before I write code to do it does anyone know of code for fitting
> > mixtures of multivariate-t distributions.
> > I can't use McLachan's EMMIX code because the license is "For non
> > commercial use only". 
> > I checked, mclust and flexmix but both only do Gaussian. 
> 
> The Gaussian case is available in a pre-packaged function FLXmclust(),
> but the flexmix framework is not limited to that case. There is a paper
> which appeared in the Journal of Statistical Software
> (http://www.jstatsoft.org/) that explains how to write new M-steps for
> flexmix. It is also contained in the package as
>   vignette("flexmix-intro")
> 
> Best,
> Z
> 
> > Thanks
> > Nicholas
> > 
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