-means, hybrid clustering or similar implementations on R

Hi,

I would like to know if someone knows an extended implementation of k-means in R to find appropriate number of clusters for a given k-dimensional data. 

Also, I am working on clustering for forecasting, if someone is interested or has knowledge on implementational details please mail me, I would appreciate it.

Regards


 

Skanda Kallur

"Cogito, ergo sum" (I think, therefore I am) - Ren? D?scartes