my @cols;
while (<DATA>) {
    chomp;
    my ($id, @markers) = split;
    for my $i (0..$#markers) {
        $cols[$i]{$markers[$i]}++;
    }
}

for my $i (0..$#cols) {
    print "column $i\n";
    print "$_ $cols[$i]{$_} " for sort keys %{$cols[$i]}; 
    print "\n";
}

__DATA__
3851 A A G G T T A A C C
3854 A A G G T T A A C C
3871 A A G G T T A A G G

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In reply to Re: Count # of occurrences per column by wind
in thread Count # of occurrences per column by Renyulb28

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