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Richard Hardy
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ARIMA model selection in R

I have run an ARIMA model on univariate time series data. I have the below statistical results with the lag differencing at 3. I am not sure which of the model to select to forecast. Any help to choose the order out of the below 2 would be much appreciated.

Note: dataframe d.ratio is with 3rd lag differencing.

Ordering: AR (1), diff (3), MA (1)

Ordering: AR (2), diff (3), MA (3)