[R] time series by calendar week
Jeffrey J. Hallman
jhallman at frb.gov
Tue Jul 8 18:50:59 CEST 2008
Or look at the fame package, which has ti (TimeIndex) and tis
(TimeIndexedSeries) classes that handle this kind of problem. I think it's
simpler and faster than the zoo stuff, but then I would say that, since I
"stephen sefick" <ssefick at gmail.com> writes:
> I don't know if this will help, but look at the zoo, chron, and Posix Date
> Time packages/classes.
> On Tue, Jul 8, 2008 at 10:25 AM, collonil <manitz.juliane at web.de> wrote:
>> i cant find a solution on this (might be) easy problem:
>> i have a time serie by carlandar weeks, so for every carlendar week i have
>> value. now i would like to use the functions for time series, so i change
>> structur to a time serie with
>> cam <- ts(number,start=c(2001,1),deltat=7/365)
>> cam <- ts(number,start=c(2001,1),frequency=52)
>> the problem on it is, that 2004 had 53 calendar weeks, which is not
>> recognized there.
>> it follows with using a saisonal structure the weeks are shifting. f.e.
>> first week in 2005 is conected with the second week in 2004.
>> with the first function leap years are not recognized.
>> is there another function which is recognizing irregularities in the
>> thanks a lot, collonil
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