[R] Kohonen's SOM in R?

John Aitchison jaitchis at lisp.com.au
Thu Mar 1 08:31:16 CET 2001

Is there an implementation of the SOM ('Self Organizing Map') procedure in 
R ? 

I am aware of the implementations of Sammon mapping, multidimensional 
scaling and, somewhat peripherally, principal curves and projection 
pursuit ..  but not SOM per se as far as I can see. Am I missing 


for anyone interesed in SOM
I found Samuel Kaski's thesis "Data exploration using self-organizing 
maps" fairly accessible

and there is a wealth of material at


John Aitchison
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