in reply to Perl Data Language Question

You need to initialitze your array_ref 
my $array_ref = [];

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I'm not belgian but I play one on TV.

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Re: Re: Perl Data Language Question
by graff (Chancellor) on Apr 01, 2003 at 03:29 UTC
    It would make for good hygiene/habits to initialize that way, but it's not mandatory (and probably won't make a difference in this case); the following works with no sweat: 
    use strict;
use PDL;

my $arref;         
while(<DATA>) {
  push @$arref, $_;
}
my $p = pdl($arref);
print $p,$/;

__DATA__
1.0
2.2
3.1
4.0
5.5
10.0
20.0

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[d/l]
      Doh, yeah... so used to -w

      --
      I'm not belgian but I play one on TV.

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