Normalization is just the proportional adjusting of a set of numbers to another set, right? So if you have a set of numbers between $l1 (low) and $h1 (high), and want to normalize them from between $l2 (low) and $h2 (high), wouldn't you just do:

my @normalized =
  map { $l2 + ($_ - $l1) * ($h2 - $l2) / ($h1 - $l1) }
  @data;
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Jeff[japhy]Pinyan: Perl, regex, and perl hacker, who'd like a job (NYC-area)
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