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Again, thank you very much.

Thank you very much for your fast answer. I guess I can do the same (automate the process using your guidelines) for running several hundred times ARIMA models and Multiple Regression models on said 500 products, right? Best regards. PS: I am well acquainted with econometrics, my doubts refer to aut...

I have six years of weekly sales data for more than 500 consumer products, and I need to run on them the Holt’s-Winters’ three-parameter exponential smoothing method (multiplicative form). How do I do this in an automated way, not having to run each process one by one? I have the same question for t...