You are using the same key for multiple values. You will only retain the last value assigned to the hash for a given key. For example 'TOTAL QUALITY' has values 8 and 14, only 14 is retained.

Most likely a hash is not appropriate for whatever you are trying to achieve. You could however:

use warnings;
use strict;
use Data::Dump::Streamer;

my @data = <DATA>;
my %dataPos;

chomp @data;
push @{$dataPos{$data[$_]}}, $_ for 0 .. $#data;

Dump (\%dataPos);


__DATA__
WELL
TOTAL QUALITY
POSITION NAME

TOTAL QUALITY
POSITION NAME

[download]

Prints:

$HASH1 = {
           ""        => [ 3 ],
           "POSITION NAME"
                     => [
                          2,
                          5
                        ],
           "TOTAL QUALITY"
                     => [
                          1,
                          4
                        ],
           WELL      => [ 0 ]
         };

[download]

Which creates a list of positions for each key value.

DWIM is Perl's answer to Gödel

In reply to Re: hash and array mismatch by GrandFather
in thread hash and array mismatch by dana

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