Re: [R] Elbow criterion

On Mon, 2011-06-20 at 13:38 +0200, Dominik P.H. Kalisch wrote: > Hi, > > I would like to cluster a dataset with the ward algorithm. I'm assuming that this refers to the agglomerative partitioning method [1]. That is, the number of clusters is selected according to the data partition that is seque

[R] Elbow criterion

Hi, I would like to cluster a dataset with the ward algorithm. That works fine. But I can't find a method to plot the structure chart to estimate the "elbow crterion" for the number of clusters. Can someone tell me how I can do it? Thanks for your help. Dominik ___

Re: [R] Elbow criterion plots for determining k in hierarchical clustering

re:" ... (I) would like to create a plot to examine for the classic elbow criterion to use in determining the best number of clusters. Ideally I'd like to plot percent variance explained (y axis) against number of clusters (x axis) Is there a way to do this in R...?" I found a way to prod

[R] Elbow criterion plots for determining k in hierarchical clustering

Hi There, I'm working on some cluster analyses on a large data-set using hclust with Wards method and Manhattan (city block) distance measures. I've created dendrograms to illustrate the clustering criteria, but would like to create a plot to examine for the classic elbow criterion to use in det