I am trying to create a hash of arrays from a file. I've put the file into an array and then I'm going through the array element by element. For each element I assign a value to a variable that I would like to add as a new key in a hash. I also create an array from the element that I'd like to use as the value for the hash. So for each element in the array, I want to add a new key and value pair to the hash.

Here's what I am using: 
open (BINFILE, $binaryfile) or die "Cannot open $binaryfile\n";
    my @lines;
    while (<BINFILE>) {
        push (@lines, $_);
    }

my %bin_file_data = ();
    for (@lines) {
        my @split = split (',', $_);
        my $sampname = $split[0];
        my $binnumbers = $split[1];
        my @bindata = split ('\t', $binnumbers);
    #I want $sampname as the key associated with the array @bindata
        $bin_file_data{$sampname} = @bindata;
    }
print Dumper (\%bin_file_data);    
    close BINFILE;

[download]

My Data Dump is giving me something like this (simplified):

$VAR1 = {
          'sampname1' => 1032,
          'sampname2' => 1032,
        };

[download]

1032 is the number of elements in @bindata. Am I just using DataDumper incorrectly or am I making an error in creating my hash?

In reply to Creating Hash of Arrays by GeneGeek

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