I did cluster validity using internal and stability measures on 8768 items but I get an error message: “ the number of items to be clustered is larger than maxitems.”  I increased my maxitems to 9000 and still got the same error message.  I partitioned the data into subsections of 600 and was able to get results but it doesn’t make sense to interpret the 15 validity results based on subsections of the data specially so if one is after the validity of clusters resulting from an entire data set. How can I increase items for cluster validation?   
 
Penny


      
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