Message-ID: <4D53F641.3050700@gmail.com>
Date: 2011-02-10T14:29:21Z
From: clement
Subject: ff: "aggregate" function for ff matrix ?
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
--
Cl?ment Tisseuil