If you have @arrays, your problem may simply be wrong terminology. What you are seeing as two columns, probably are indices and values.
You could try 
use strict;
use warnings;
use Data::Dumper;

# your code for creating @array1 and @array2 goes here

print Dumper(\@array1);
print Dumper(\@array2);

[download]
and show us the output.

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

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