ewijaya,
Tie::IxHash's main focus is not sorting hashes, but preserving order. It does provide a couple of limited methods to sort the hash (by keys and values), but does not provide an interface to do a numerical sort. You likely want to use Tie::Hash::Sorted for this. See below: 
#!/usr/bin/perl
use strict;
use warnings;
use Tie::Hash::Sorted;

my $sort = sub {
     my $hash = shift;
     [ sort {$hash->{$b} <=> $hash->{$a}} keys %$hash ];
};
tie my %hash, 'Tie::Hash::Sorted', 'Sort_Routine' => $sort;
%hash = (
    '1-1' => 80,  '1-4' => 26, '4-4' => 3,
    '2-2' => 180, '2-4' => 72, '1-2' => 2196
);
Print_Top(2, \%hash);

sub Print_Top {
    my ($max, $hash) = @_;
    for ( keys %$hash ) {
        return if ! $max--;
        print "$_ : $hash->{$_}\n";
    }
}

[download]

Cheers - L~R

In reply to Re: Splicing and Sorting problem with Tie::IxHash by Limbic~Region
in thread Splicing and Sorting problem with Tie::IxHash by monkfan

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.