abdullah.yildiz:

I don't see anything immediately wrong. But I'll make a couple of suggestions:

• You can use a simpler version of for:

  for (1 .. $array_size) {
     my $andom_number = int(rand($range));
     print DATASET $random_number;
  }
  [download]

• Do you need to keep the data around for later? If not, then I'd skip putting the numbers in a file.

...roboticus

When your only tool is a hammer, all problems look like your thumb.