Hi,
  
  I am despairing of getting the indices for a vector:
  First, I have a table from which I kick out a number of rows with  na.omit. Next, I use this table for clustering with kmeans and  cl$cluster contains my clusters. The cl$cluster is a vector which still  contains my original indices from the very beginning, a kind of like an  "associative" array. But how can I get a list of only these indices?  When I use which() on the data it returns new indices starting from 1  to N together with the "old" indices but the "old" ones remain  unaccessible. 
  
  It would be great if someone could give me a hand with that.
  
  Thanks,
    Werner
  

		
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