[R] self organizing map advice for categorical data
thpe at simecol.de
Tue May 5 23:27:54 CEST 2009
George Chen schrieb:
> Could anybody offer any advice about implementing a Kohonen self organizing map for categorical data? Specifically I am wondering if there are any pre-existent packages that can deal with categorical data and/or how one would compare the input vector of categoricals with the self organizing map nodes.
> Thanks in advance.
> George Chen
Yes, there is a very nice one with excellent graphics, see article:
Ron Wehrens, Lutgarde M. C. Buydens (2007) Self- and Super-organizing
Maps in R: The kohonen Package. Journal of Statistical Software 21(5).
Hope it helps
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