[R] aggregate for zoo or its?
Jeffrey J. Hallman
jhallman at frb.gov
Mon Mar 8 23:12:03 CET 2010
Or for real power and flexibility, see the 'convert()' function in package
Gabor Grothendieck <ggrothendieck at gmail.com> writes:
> See ?aggregate.zoo, e.g.
> 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?
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