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2006 Jul 27
6
Any interest in "merge" and "by" implementations specifically for sorted data?
Hi Developers,
I am looking for another new project to help me get more up to speed
on R and to learn something outside of R internals. One recent R
issue I have run into is finding a fast implementations of the
equivalent to the following SAS code:
/* MDPC is an integer sort key made from two integer columns */
MDPC = (MD * 100000) + PCO;
/* sort the dataset by the key */
PROC SORT;