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Re: convert rows to columns

by McA (Priest)
on Nov 26, 2012 at 12:47 UTC ( #1005635=note: print w/replies, xml ) Need Help??


in reply to convert rows to columns

Hi,

there is something which jumped into my eye: The index of an array runs from 0 to scalar(@array) - 1, so you have to adjust the condition of your for loop.

Best regards
McA

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Re^2: convert rows to columns
by ack (Deacon) on Nov 26, 2012 at 20:35 UTC

    I saw that, to. Also, you can't push to a sigle element of an array that I'm aware of. You have to push to an array. So the line push $arr[$cnt], $xox[$i]."".$xox[1+$i] I believe won't work. You need something like push @arr, $xox[$i]."".$xox[1+$i].

    ack Albuquerque, NM
      In recent Perl (since 5.14), you can push to an array reference. It is not autovivified, though; therefore,
      perl -e '$x[0] = []; push $x[0], 1'
      works, but
      perl -e 'push $x[0], 1'
      does not.
      لսႽ ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

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[perldigious]: I didn't want to tie up memory unecessarily basically, I wanted to "delete" it specifically to free it up, and wasn't sure I was even accomplishing that.
[stevieb]: perldigious You should start by writing some unit tests. That'll ensure current functionality doesn't break with changes.
[choroba]: unit tests++
[choroba]: The only problem you can't solve by adding more tests is the problem of having too many tests.
[stevieb]: choroba Been there, done that :) Better too many than not enough though!

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