[R] aggregate for zoo or its?

Gabor Grothendieck ggrothendieck at gmail.com
Sun Mar 7 23:34:31 CET 2010


See ?aggregate.zoo, e.g.

library(zoo)
z <- zoo(1:1000, as.Date("2000-01-01") + 0:999)
aggregate(z, as.yearmon, mean)

or replace mean with whatever summarization you want.

On Sun, Mar 7, 2010 at 5:29 PM, Erin Hodgess <erinm.hodgess at gmail.com> wrote:
> Dear R People:
>
> The aggregate function works very well on regular time series.
>
> Is there a version for zoo or its that would take daily data and
> convert it to monthly, please?
>
> Thanks in advance,
> Sincerely,
> Erin
>
> --
> Erin Hodgess
> Associate Professor
> Department of Computer and Mathematical Sciences
> University of Houston - Downtown
> mailto: erinm.hodgess at gmail.com
>
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