thanks again. I am a beginner at perl so I 've been trying to answer my questons, but it was no good. I have another one for you, which might be a bit trickier. I need to calculate the frequencies by which specific combinations appear. So after I do the pairwise combinations and store them into the @count _collection(that is all the possible times that specific combinations appear, then I have to do that for individual sites and calculate the frequency. In the code that is if a divide a specific counter (say counterAG) from %counts with how many times it appears in the AoH. That is I need to calulate countAG/total_count_AG. I don't know if this is possible, I suspect that since the keys of the hashes are similar, it can be done, but I am not sure how. Once again thanks for your patience and your time.

In reply to Re^4: a bit more help with pairwise comparisons between strings in arrays. by replicant4
in thread a bit more help with pairwise comparisons between strings in arrays. by replicant4

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