I have fitted an `ARIMA`

model and the best fit is `ARIMA(2,1,2)`

. The problem now is that I cant write the equation for this. Can someone please help me to write an `ARIMA(2,1,2)`

equation?

`ARIMA`

model and the best fit is `ARIMA(2,1,2)`

. The problem now is that I cant write the equation for this. Can someone please help me to write an `ARIMA(2,1,2)`

equation?