No problem. Your post++ also illustrated a good point that might be missed by many... The "format string" can be calculated dynamically. This is also possible in C using sprintf(). But here is a Perl demo: 
#!/usr/bin/perl
use strict;
use warnings;

my $textlength=3;
my $numlength=1;  # on purpose too narrow

my $fmt = "%-$textlength".'s '."%$numlength"."d\n";
print "format is:$fmt";
printf $fmt, "a",1;
printf $fmt, "abc",123;
printf $fmt, "abcdef",12345;

__END__
prints:
format is:%-3s %1d
a   1
abc 123
abcdef 12345

[download]
I like uniformity in the code and probably would have written the OP's code something like this: 
#!/usr/bin/perl
use strict;
use warnings;

use List::Util qw(sum);

my ($FreqP, $FreqN, $FreqZ) = map {int rand 41600} 0..2;
my $Sum = sum($FreqP, $FreqN, $FreqZ);

printf ( "Freq(Z+): %19d\n" , $FreqP) ;
printf ( "Freq(Z-): %19d\n" , $FreqN) ;
printf ( "Freq(0):  %19d\n" , $FreqZ) ;
printf ( "Total:    %19d\n" , $Sum) ;

__END__
Freq(Z+):               11640
Freq(Z-):                3527
Freq(0):                33243
Total:                  48410

[download]

In reply to Re^3: How to right align outputs of stored data in a variable? by Marshall
in thread How to right align outputs of stored data in a variable? by perlnovice1900

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