Hi all, I am working on a dataset that contains 4 columns chromosom_id, fstart, fstop, counts. These datasets are something like this:

Chromosom_id    fstart  fstop   Count
1      105     1       14.5
1       105     1       14.5
1       105     1       14.5
1       813     797     4
1       813     797     22
1       813     797     4
1       813     797     22
1       800     816     23
1       802     818     24
1       804     820     32
1       804     820     44
1       813     797     4
1       813     797     22
[download]

I would like to get a cluster that contains the hits that are less than 200bp in length.So as for as in this case the sets the first three hits should be made as one cluster and the rest other should be made as another cluster. Could i get suggestions from you guys.And i have succeeded in just parsing the file.
Thanks

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