Hi,
Can anyone tell me how to find number of cluster for a data set.
I have a data set in following format
Group var1 var2 var3
A 1 2 3
A 1 2 3
A 1 2 3
B.......
B.......
C
C....
C
C.....
I want to know for each group what is the optimum number of cluster.
like A- 2
B-3
C-5
please could anyone help.its very urgent.
Thanks
Sumit
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