Hi Speed_Freak,

This line was not correct, sorry for that: $subres{ID} = $attrs->[0] ; and should have been $subres{ID} = $attrs->[$j][0] ;. But it doesn't matter so much because that line is changed again in the next code.

I will give you some suggestions commented in the code how to require the results you described, but you'll have do some programming there yourself:

use strict ;
use warnings ;
use Data::Dumper ;

open my $dataIn1, "<", "Attributes_ID.txt" or die "NO ID FILE: $!" ;
open my $dataIn2, "<", "Attributes.txt" or die "NO ATTR FILE: $!" ;

my $data = () ;
my $attrs = () ;

sub getdata {
    my ( $fileName, $type ) = split /\t/, $_[0] ;
    push @{$data}, $type unless !defined $fileName ;
}

sub getattrs {
    my @attrs = split /\t/, $_[0] ;
    push @{$attrs}, \@attrs unless !defined $attrs[0] ;
}

sub calcPercentages {
    # INPUT: Hash reference
    # Determine the total amount of attributes
    # Walk through each category: Circle, Triangle, ...
    # Take the hit count divided by the total amount of attributes (mu
+ltiplied by 100?)
    # For each category add something to the hash to store the percent
+age
    #    e.g. CircleChance, TriangleChance, ....

    # askQuestions could potentially be called here
}

sub askQuestions {
    # INPUT: Hash reference
    # my $h = ...
    # Question 1: Does this attribute occur in Circle more than 50% of
+ the time, and less than 10% of the time in Triangle
    # if ( $h->{ CircleChance } > 50 && $h->{ TriangleChance } < 10 ) 
+{
    #    Do something here.
    #    E.g. Store another result $h
    # }
}

while( <$dataIn1> ) {
    chomp ;
    getdata( $_ ) ;
}

while( <$dataIn2> ) {
    chomp ;
    getattrs( $_ ) ;
}

my @result;
for( my $j = 0 ; $j < @{$attrs} ; ++$j ) {
    my %subres ;
    my $id = $attrs->[$j][0] ;
    @subres{@{$data}} = ( 0 ) x @{$attrs->[0]} ;
    for( my $i = 1 ; $i < @{$attrs->[$j]} ; ++$i ) {
        if ( $attrs->[$j][$i] == 1 ) {
            ++$subres{ $data->[$i-1]}  ; 
        }
    } ;
    # You could potentially start calculating hit count percentages pe
+r category here:
    calcPercentages( \%subres ) ;
    push @result, { $id => \%subres } ;
}
print Dumper(\@result) ;
[download]

The results now look like this, but more work is needed to calculate the hit count percentages (as indicated in the code above):

$VAR1 = [
          {
            '1' => {
                     'Circle' => 4,
                     'Rectangle' => 4,
                     'Square' => 4,
                     'Triangle' => 0
                   }
          },
          {
            '2' => {
                     'Circle' => 4,
                     'Square' => 4,
                     'Rectangle' => 0,
                     'Triangle' => 0
                   }
          },
        ];
[download]

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