Stationarity and Invertibility of the SARIMA Model

Hi,
I am working with a (S)ARIMA model: (1,1,1) x (3,1,2)_12 and want to check the stability of this model. How do I find all eigenvalues to see if they lie inside of the unit circle? I have already estimated the model.

Answers (0)

Asked:

Mak
on 9 Apr 2020

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