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A data series required one seasonal difference and two non seasonal differences to make it stationary. You have found two early spikes in the partial
A data series required one seasonal difference and two non seasonal differences to make it stationary. You have found two early spikes in the partial autocorrelation function after the non seasonal differences with converging autocorrelations. In addition you found one early lag spike in the autocorrelation function for the seasonal differenced data along with converging partial autocorrelations. Which is the appropriate ARIMA menu for the model? |
(2,2,1)(2,1,0)
(2,2,0)(0,1,1)
(1,2,0)(2,1,0)
It cannot be determined from the information given
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