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cluster performance operators..what does different value mean?
1. what does cluster number index value shows which is output of cluster count performance operator?
2. what does small and large value of avg within cluster distance and avg. within centroid distance mean in terms of good and bad clustering?
3. I also want to check other indexes value like Dunn index,Jaccard index, Fowlkes–Mallows for various clustering algos. but rapidminer don't have any operator for this, what to do for that. I don't have experience with R.