Thank you for the suggestion and it is exactly as you said only one observation in each cluster. I know I can avoid this anyway and I am just out of curiosity of the error.
I am writing a special algorithm to cluster some datasets with different numbers of observations. For some particular datasets, there is only one observation(e.g. people died of a rare disease). kmeans() thus will not work at this situation. Feng 2011/2/2 Rafael Björk <rafael.bj...@gmail.com> > If you change the algorithm, the function allow you to do this: > > > kmeans(a, 20,algorithm="Lloyd") > > Maybe i'm missing something here, but why would you want to create as many > clusters as there are observations? Won't the outcome just be one > observation in each cluster? > > > > -- Feng Li Department of Statistics Stockholm University 106 91 Stockholm, Sweden http://feng.li/ [[alternative HTML version deleted]]
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