Yes, sorry it auto.arima is in the 'forecast' package. The following produces the problem:
auto.arima(ts(c(rep(0,104), rep(143, 52), rep(260,33)), frequency=52)) Kevin ---- Prof Brian Ripley <[EMAIL PROTECTED]> wrote: > On Thu, 25 Sep 2008, [EMAIL PROTECTED] wrote: > > > I am calling auto.arima with a time series that is about 186 > > observations long with a frequency of 52. With some time series I get: > > > > 1:last.nonzero: result would be too long a vector > > > > Is there something that I can do to the data to avoid this error? > > Reformulate what you are doing: the error presumably relates to the model > fitting, not the data per se. > > You have not even told us what package auto.arima() is in, let alone given > us a reproducible example and the result of traceback(). But presumably > it is from 'forecast' in the 'forecasting' bundle, and this looks like an > infelicity in the package, so please send a reproducible example to the > maintainer. > > (BTW to Rob, max((1:length(testvec))[abs(testvec)>1e-8]) is bad coding > practice: max(which(abs(testvec)>1e-8)) is clearer and safer, but even > then is not going to cope with an empty set, and I suspect max() returning > -Inf is the problem here.) > > > Thank you. > > > > Kevin > > > > ______________________________________________ > > 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. > > PLEASE do. > > > -- > Brian D. Ripley, [EMAIL PROTECTED] > Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ > University of Oxford, Tel: +44 1865 272861 (self) > 1 South Parks Road, +44 1865 272866 (PA) > Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ 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.
