Re: [R] 15-min mean values

From: <Augusto.Sanabria_at_ga.gov.au>
Date: Wed 08 Feb 2006 - 16:19:01 EST

Thanks a lot to Gabor for his help with the solution of this problem.

The solution using "zoo(aggregate)"
is easy to implement & efficient. I have calculated the 15min mean values of a 1min wind speed file containing 2.9 million records x 16 columns
(size 179 MB) in just 144 seconds
(R-2.1.1 running in a GNU/LINUX machine).

Thanks to Bogdan too for his suggested solution using SQL, I have not tried that one yet.

Augusto



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