On Mon, Jun 28, 2010 at 7:08 PM, stephen sefick <ssef...@gmail.com> wrote: > There are NA most likely. Will aggregate pull the value out? Again, > thanks for all of the help. > > Stephen
I assume you mean NAs in the data. They are handled by the function you give to aggregate so just make sure you use something appropriate. z <- zoo(c(1, NA, 3, 4), 0:3) aggregate(z, time(z) %/% 2, function(x) mean(x, na.rm = TRUE)) ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
