[R] ARIMA0 question

Thomas Lumley tlumley at u.washington.edu
Tue Jul 31 20:37:21 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?

One way around this problem is to wrap the calculation in the try()


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