Hello agreen54,

As others have said, we won’t write the code for you (PerlMonks is a teaching site, not a code-writing service). But I will give you two hints on possible ways to approach this task:

  1. Use a C-style for loop to iterate over the indices of the two arrays. See perlsyn#For-Loops. Update: GrandFather (below) is of course correct, prefer a Perl-style for loop! (What was I thinking?) See perlsyn#Foreach-Loops.

  2. Look at the pairwise function in the module List::MoreUtils.

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re: subtract two columns from perl arrays by Athanasius
in thread subtract two columns from perl arrays by agreen54

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