[R-sig-hpc] ff: "aggregate" function for ff matrix ?
clement
clement.tisseuil at gmail.com
Thu Feb 10 15:29:21 CET 2011
Hello,
Playing around the ff package, I wonder if there are some possibilities
to develop functions like "aggregate" based on the ffcolapply or ffapply
ff functions, which would split the big ff matrix into subsets according
to the different levels of a factorial vector, computes summary
statistics for each level, and returns the result in a ff object ?
Thanks in advance.
Regards
--
Clément Tisseuil
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