Hi all,

I have a hash of the following format

$VAR1 = {
          'A2M' => [
                     'C972Y',
                     'A423W'
                   ],
          'A4GALT' => [
                        'W261X',
                        'P251L',
                        'P251S',
                        'A219V'
                      ]
        };

[download]

What I would like to do is to count the values for each key and also to note the number of values that contain an X. Thus, I would like to have a table like this:

gene total x
A2M 2 0
A4GALT 4 1

[download]

The code I used to load the file into the hash is

my %hash;
while(<INFILE>)
{
   chomp;
   my $line = $_;
   
    my ($key, @val) = split /\t/, $line, 2;
    push @{ $hash{$key} }, @val;
}

[download]

And the script that I though would work for the second part but did not is as follows:

my $totalcount = 0;
my $xcount = 0;

foreach my $k (sort keys %hash)
{
    print "Current key is\t" . $k . "\n";
    
    my @values = $hash{$k};
    
    foreach $i (@values){
    
    $xcount++ if $i =~ /(X)/;
    $totalcount++;
    }
    
    print $k . "\t" . $totalcount . "\t" . $xcount . "\n";

[download]

I would appreciate any help. when I try to check whether the value array works properly, I noticed that it does not, however, I could not pinpoint what is exactly wrong with the values array.

Thank you.

In reply to Count values in a hash by sophix

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