Incidentally, your

if ($count{$batch_dates}) {
  $count{$batch_dates}++;
} else {
  $count{$batch_dates} = 1;
} # end if

[download]
could be replaced by just
$count{$batch_dates}++;

[download]
If no $batch_dates key previously existed in %count, then the first use of it with ++ will autovivify (with numeric value zero) and increment to 1.

In reply to Re: Unique value count in hash not working properly by keszler
in thread Unique value count in hash not working properly by koolgirl

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