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
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--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
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