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Re^2: returnong array in custom subroutine

by perldigious (Priest)
on Aug 31, 2016 at 14:05 UTC ( #1170894=note: print w/replies, xml ) Need Help??


in reply to Re: returnong array in custom subroutine
in thread returning array in custom subroutine

While the code I give here is just yours with minimum modifications to do what you want, I actually first attempted to find a CPAN module with a "normalize this array of numbers" sort of function built in. I couldn't find one, but perhaps I'm just bad at searching, because it seems like that's something that probably exists...

I love it when things get difficult; after all, difficult pays the mortgage. - Dr. Keith Whites
I hate it when things get difficult, so I'll just sell my house and rent cheap instead. - perldigious
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Re^3: returnong array in custom subroutine
by InfiniteSilence (Curate) on Aug 31, 2016 at 17:43 UTC

    When I tried "statistics normalize" this came right up.

    Celebrate Intellectual Diversity

      You win the prize sir! My ability to find modules leaves a lot to be desired, but I just knew something this common must exist. That said, I have always loathed object oriented code (I'm still bad at that too).

      use strict; use warnings; use Normalize; my @not_normalized = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10); my @are_normalized = @not_normalized; my $norm = Normalize->new(); $norm->normalize_to_max(\@are_normalized); printf "%.2f ", $_ foreach (@not_normalized); print "\n@are_normalized\n";

      UPDATE: I do get the module to come up right away of course when I search CPAN for "normalize", but I originally tried Googling "cpan normalize array" and that doesn't seem to get anywhere close. Also, I still don't understand for the life of me why I need to call the constructor for a new object just so I can use a method of that object on the array like I do here. Certainly I'm just ignorant when it comes to object oriented code, there must be a way to use the method without actually having to create an object, or to otherwise use an "anonymous" object method call if that's even the right terminology. Did I mention I loathe (a.k.a. need to learn better) object oriented code? :-)

      I love it when things get difficult; after all, difficult pays the mortgage. - Dr. Keith Whites
      I hate it when things get difficult, so I'll just sell my house and rent cheap instead. - perldigious
Re^3: returnong array in custom subroutine
by dovah (Novice) on Aug 31, 2016 at 14:09 UTC
    Thanks! Actually before (attempting to) write my own subroutine, I also tried to google that and I did not find any hits. Maybe we're both bad at googling. :)

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