G'day shekarkcb,

I got rid of the irrelevent data from the hash. I added more test data to better test the sorting process.

I've assumed that (1) "'NULL'" means a zero-length string; (2) the wanted sort order is undefs first, then zero-length strings, then numerical data in ascending order; (3) the output is an array of arrays for writing to a spreadsheet. 

#!/usr/bin/env perl

use strict;
use warnings;

my %data = (
    A => [ 0, 1, 2, 3, 99,      5, 6 ],
    B => [ 0, 1, 2, 3, 9.9999,  5, 6 ],
    C => [ 0, 1, 2, 3, "",      5, 6 ],
    D => [ 0, 1, 2, 3, undef,   5, 6 ],
    E => [ 0, 1, 2, 3, 11,      5, 6 ],
    F => [ 0, 1, 2, 3, 123.0,   5, 6 ],
    G => [ 0, 1, 2, 3, '',      5, 6 ],
    H => [ 0, 1, 2, 3, undef,   5, 6 ],
    I => [ 0, 1, 2, 3, -11,     5, 6 ],
    J => [ 0, 1, 2, 3, -1.1,    5, 6 ],
);

my @rows = map {
    [ $_->[0] => @{$data{$_->[0]}} ]
}
sort {
    (! defined $a->[1]) ? -1 :
    (! defined $b->[1]) ?  1 :
    (! length $a->[1])  ? -1 :
    (! length $b->[1])  ?  1 :
    ($a->[1] <=> $b->[1])
}
map {
    [ $_ => $data{$_}[4] ]
} keys %data;

use Data::Dump;
dd \@rows;

[download]

Output:

[
  ["H", 0 .. 3, undef, 5, 6],
  ["D", 0 .. 3, undef, 5, 6],
  ["C", 0 .. 3, "", 5, 6],
  ["G", 0 .. 3, "", 5, 6],
  ["I", 0 .. 3, -11, 5, 6],
  ["J", 0 .. 3, -1.1, 5, 6],
  ["B", 0 .. 3, 9.9999, 5, 6],
  ["E", 0 .. 3, 11, 5, 6],
  ["A", 0 .. 3, 99, 5, 6],
  ["F", 0 .. 3, 123, 5, 6],
]

[download]

-- Ken

In reply to Re: Need to sort and data structure based on values inside arrayrefs. by kcott
in thread Need to sort and data structure based on values inside arrayrefs. by shekarkcb

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