arima() in for loop
Hi! Try the try() command for the parts of your code that fail. Maybe it?s going to be your friend. detlef
On 28-Oct-2002 vito muggeo wrote:
hi all,
In a simulation context I'm running in a for loop the arima() function
for( i in 1:1000){
y<-arima.sim(....)
out<-arima(y,....)
........
}
Everything works, but after some cycle (10, say) I get error due to the
particular y-values simulated. (E.g., a *frequent* error is "Error in
svd(na.omit(xreg)) : 0 extent dimensions") As a consequence the overall loop
does not continue!
Is it possible to skip the "errors" ? i.e I'd like that, when arima() is not
able to estimate the model, it returns 0, say (or some other object), in
order to allow the loop to go on.
I tried to look inside the code of arima(), but I'm not so expert to find
the solution
Many thanks,
best,
vito
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