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Hello! I've gotten RSME (dynamic and static) before for an ARMA model & I de-seasonalized but I didn't write down how I did it before and I can't seem to replicate it. I know a window pops up and it has a table-esque thing where they tell you the RSME.

Does anybody know how to do this?

Thanks so much!

Never mind, I figured it out. Thank you though!

hello bcd ..
I'm newwwww with econometrics could you plz tell me hoe could i get RMSE ?
I'm trying to compare between the performance of two models..
Your help would be very appreciated.. and thanks in advance.