#x27;aggregate' vs. 'ave' in
general?
-mark
On 4/3/11 3:27 PM, Gabor Grothendieck wrote:
Try ave:
dat$cv<- ave(dat$Count, dat[c("Site", "Plot", "Sp")], FUN =
function(x) rollapply(zoo(x), 2, cv, na.pad = TRUE, align = "right"))
# Hi there,
# I am trying to apply a function over a moving-window for a large
number of multivariate time-series that are grouped in a nested set of
factors. I have spent a few days searching for solutions with no luck,
so any suggestions are much appreciated.
# The data I have are for the
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