Hi, I have a number of different groups g1, g2, … g100 in my data. Each group is comprised of a known but different set of members from the population m1, m2, …m1000. The data has been organized in an incidence matrix: g1g2g3g4g5 m111101 m210010 m301100 m411011 m500110
I need to count how many groups each possible pair of members share (i.e., both are member of). I shall prefer the result in a pairwise edgelist with weight/frequency in a format like the following: m1, m1, 4 m1, m2, 1 m1, m3, 2 m1, m4, 3 m1, m5, 1 m2, m2, 2 ... and so on. I shall highly appreciate if anybody could suggest/share some code/tool/module which could help do this. Best regards, Muhammad
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