         Thanks. I had a look at that and it says:


Partitioning Clustering:                  

                Function                            kmeans()                          from package stats provides   several algorithms   for computing partitions with respect to   Euclidean distance.
Hence why I am using a euclidean distance matrix. Why is this incorrect?

Gabor Grothendieck <ggrothendieck@gmail.com> wrote:
There are many clustering functions in R and R packages and some
take distance objects whereas others do not.  You likely read about
hclust or some different clustering function.  See ?kmeans for the
kmeans function and also look at the CRAN Task View on clustering for
other clustering functions:

  http://cran.r-project.org/src/contrib/Views/

 
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