Hi Monks..
I know i allready posted something similar but now im trying to print the upper letters of a matrix in a way that the matrix remains formated if the values (numbers) change .. for example in this code if you change the value of A => {A => from 5 to 1500 the matrix would no be formated properly any more thanks for the help! 

use strict;
use warnings;
use Data::Dumper;

my %data = (
A => { A => 5,  R => -2, N => -1 },
R => { A => -2, R => 7,  N => -1 },
N => { A => -1, R => -1, N => 7 },
);

my @keys = sort keys %data;

print ' ';
printf "%4s" => $_ for @keys;
print "\n";

for my $row (@keys) {
    print $row;
    printf "%4s" => $data{$row}{$_} for @keys;
    print "\n";
}

exit;

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In reply to printing upper letter of the matrix by madM

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