Untested code: 
my @max;
for (my $n = 0; $n < @lines; $n++) {  # Assume the rows are in @lines
    $values[$n] = [split /;/, $lines[$n]];
    shift @values;
    for (my $i = 0; $i < @{$values[0]}; $i++) {
        if ($values[$i] >= $lines[$max[$i]||0][$i]) {
            $max[$i] = $n;
        }
    }
}
print "$_\n" for @max;

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In reply to Re: Find column number for the row-wise max value by JavaFan
in thread Find column number for the row-wise max value by jaksow

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