R help - Jul 2009 - normal mixture model

Hi, All,

I want to fit a normal mixture model. Which package in R is best for this? I
was using the package 'mixdist', but I need to group the data into
groups
before fitting model, and different groupings seem to lead to different
results. What other package can I use which is stable? And are there
packages that can automatically determine the number of components?

Thank you,

Cindy

	[[alternative HTML version deleted]]

You can use mclustBIC in package mclust (uses the BIC for deciding 
about the 
number of components and hierarchical clustering for initialisation).

Christian

On Sun, 26 Jul 2009, cindy Guo wrote:
> Hi, All,
>
> I want to fit a normal mixture model. Which package in R is best for this?
I
> was using the package 'mixdist', but I need to group the data into
groups
> before fitting model, and different groupings seem to lead to different
> results. What other package can I use which is stable? And are there
> packages that can automatically determine the number of components?
>
> Thank you,
>
> Cindy
>
> 	[[alternative HTML version deleted]]
>
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*** --- ***
Christian Hennig
University College London, Department of Statistical Science
Gower St., London WC1E 6BT, phone +44 207 679 1698
chrish at stats.ucl.ac.uk, www.homepages.ucl.ac.uk/~ucakche