[R] RFclustering - is it available in R?

Liaw, Andy andy_liaw at merck.com
Wed Aug 15 20:53:14 CEST 2007

Basically the random forest algorithm can generate a proximity 
matrix of the data, and it's up to you how you would want to 
proceed from there.  You can feed that into clustering 
algorithms that accept a similarity matrix, or turn it into a 
distance matrix for clustering algorithms that need a distance
matrix (e.g., hclust()).  You may or may not want to do 
ordination as the UCLA folks suggest.

I think this is one of the great things about working in R:
you have the freedom to choose how you want to proceed from
some intermediate result, and not locked in to something some
one decide to hardwire into the software.


From: Gavin Simpson
> On Wed, 2007-08-15 at 09:44 -0700, David Katz wrote:
> > Several searches turned up nothing. Perhaps I will try to 
> implement it if
> > nobody else has. Thanks.
> You can do this with Andy Liaw's randomForest package can do this and
> the first hit on a Google search (on term "RFclustering") was this:
> http://www.genetics.ucla.edu/labs/horvath/RFclustering/RFclust
> ering.htm
> which shows how one might go about this with some helper functions.
> G
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