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Calculating percentage of change between columns

by naChoZ (Curate)
on May 29, 2013 at 22:47 UTC ( #1035927=perlquestion: print w/ replies, xml ) Need Help??

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  1. or download this
    num|name
    1|foo
    ...
    27|quux
    37|quuux
    48|quuuux
    
  2. or download this
    file1:
    acct|description|nums
    ...
    foo-004|foo four|12,18,25,37
    foo-005|foo five|12,15,25,27,37
    foo-006|foo six|1,12,15,25,27,37,99
    
  3. or download this
    $hash => {
        file1 => {
    ...
                    quuuux => 0,
                 },
    }
    
  4. or download this
    name    file1   file2   file3
    foo     4       4       4
    ...
    quux    8       8       8
    quuux   6       5       5
    quuuux  empty   empty   empty
    
  5. or download this
    name    file1   file2   %change  file3   %change
    foo     4       4       0%       4       0%
    ...
    quux    8       8       0%       8       0%
    quuux   6       5       -83%     5       0%
    quuuux  empty   empty            empty
    
  6. or download this
    my $hash = {};
    my @heading = ( 'name' );
    ...
    
    push @heading, basename($_) for sort @filenames;
    

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