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Re: Efficient way to sum columns in a file

by eibwen (Friar)
on Apr 13, 2005 at 06:51 UTC ( #447281=note: print w/ replies, xml ) Need Help??

in reply to Efficient way to sum columns in a file

With regard to your creation of an array and subsequent iteration, it is possible to index the array returned by split and therefore avoid the subsequent iteration:

$sum += (split(/,/))[5];

While indexing in this fashion is useful, I think the @F method would be faster in this case.

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