[R] ARIMA0 question

Prof Brian D Ripley ripley at stats.ox.ac.uk
Tue Jul 31 20:35:04 CEST 2001

On Tue, 31 Jul 2001, Erin Hodgess wrote:

> Dear R People:
> In library(ts), there is a function arima0
> to estimate the ARMA parameters. R 1.2.3, windows
> Sometimes when fitting a model, an error
> occurs in the optim procedure.  This error
> stops the process (which is as it should be).
> When running a simulation with many iterations,
> this error will stop the entire simulation.
> My question is, please:
> What is the best way to get out of the arima0
> function when an error occurs without stopping
> the whole procedure?

Looks like a case for calling arima0 inside try().
The try help page has an example.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
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 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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