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beacuse
2012 Nov 14
0
Time Series with External Regressors in R Problems with XReg
...fit the model,
however, when I wanted to make predictions (see below):
> var1.pred<-predict(var1.fit, n.ahead=12)
R popped the following error:
[b]Error in predict.Arima(var1.fit, n.ahead = 12) :
'xreg' and 'newxreg' have different numbers of columns
>
Which is weird beaucse 1. I made sure that my regressor matrix had the same
amount of rows as my univariate time series and
2. R was able to fit the model I was suggesting.
Has anyone done arima models including external regressors in R? Does anyone
has any idea of what could be happening?
Best regards,
Paul
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