Dear all, I would like to make a table where all of the elements in my array are written out pairwise (no self-self pairs, and no reverse pairs (ie. only A-B and not A-B, B-A). I thought that the code below would do this, but it is printing some self pairs and reverse pairs. any help is appreciated.

foreach my $pwy (keys %HoPwy){
        my @members=@{$HoPwy{$pwy}};
        my $pwyLen=scalar(@members);
        for (my $i=0;$i<($pwyLen-1);$i++){
                for (my $j=1;$j<$pwyLen;$j++){
                                print OUT join("\t",$members[$i],$memb
+ers[$j],$pwy)."\n";
                }
        }
}
close(OUT);

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In reply to writing array as pairwise by AWallBuilder

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