Hi, Christian,

Thank you for the reply. I just tried. Does the function mclustBIC only give
the best model, or does it also do EM to get the cluster means and variances
according to the best model it picks? I didn't find it.  Is there a way to
automatically select the best number of components and do EM? Because I need
to do the normal mixture model in a loop (one EM at an iteration), so I want
it to do everything automatically.
Thanks,

Cindy

On Sun, Jul 26, 2009 at 3:46 PM, Christian Hennig <chrish@stats.ucl.ac.uk>wrote:

> 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
>>
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>>
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>>
>>
> *** --- ***
> Christian Hennig
> University College London, Department of Statistical Science
> Gower St., London WC1E 6BT, phone +44 207 679 1698
> chrish@stats.ucl.ac.uk, www.homepages.ucl.ac.uk/~ucakche
>

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