I'm dealing with ARIMA models and forecasts. I have a series like the one shown below: enter image description here

The mean and the standard deviation seem to be stationary. I calculated the autocorrelation and the partial autocorrelation plots, that is shown below. enter image description here

Does anyone is able to explain what parameters p and q I should use? Are these plots enough to see if I can use ARIMA to predict my future data?

  • $\begingroup$ Maybe a seasonal term at lag ~11. $\endgroup$ – user2974951 Sep 11 at 8:40

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