Have you checked the amap package? It has been updated just recently and if
I am not wrong there is a method which indicates the best number of k groups
for your data.

Best wishes,
P. Olsson



2006/2/5, John Janmaat <john.janmaat@acadiau.ca>:
>
> Hello,
>
> I'm playing around with cluster analysis, and am looking for methods to
> select the number of clusters.  I am aware of methods based on a 'pseudo
> F' or a 'pseudo T^2'.  Are there packages in R that will generate these
> statistics, and/or other statistics to aid in cluster number selection?
>
> Thanks,
>
> John.
> --
>
> ===========================================================================
> Dr. John Janmaat                       Tel: 902-585-1461
> Department of Economics                Fax: 902-585-1070
> Acadia University                      Email: jjanmaat@acadiau.ca
> Wolfville, Nova Scotia, Canada.        Web: ace.acadiau.ca/~jjanmaat/
>
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