Re: [R] Does SQL group by have a heavy duty equivalent in R

From: Farrel Buchinsky <fjbuch_at_gmail.com>
Date: Tue 02 Jan 2007 - 01:02:01 GMT

Absolutely wonderful. Yes indeed, instead of having two variables being listed as group by in a sql statement one can use a combination of cbind, unique, duplicated and indexing to get the same data without having to go through second programs.

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