the number of cluster

Are there any package that is using "v-fold cross-validation algorithm"
to test the number the clusters? 

Thanks,
Ming
XP Sun wrote:

hi, all,

	how to decide the number of cluster before you use kmeans and hclust? 
	thank you in advance!
Depends on your criterion. Best idea is always to use the brain and
think about how many clusters are sensible for the particular
task/problem/data.
For hclust, you can also look at the dendrogram's height and distances
of dissimilarities in order to cut.

Uwe Ligges

best
-xpsun

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