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Hi, I would like to run a hierachial cluster analysis on my factor scores (uncorrelated) to find the cluster centres of interest and then use these centres for my initial cluster seeds in k-means clustering. However I have a dataset with over 4000 cases. Is it possible to run hierachial cluster analysis in SPSS on such a large dataset or should I take a random sample and run it on them. Can anyone help? Thanks JB _________________________________________________________________ Express yourself with cool new emoticons http://www.msn.co.uk/specials/myemo