The ARIMA model equivalency to the additive version of Winters method is the ARIMA(0,1,p+1)(0,1,0) p model The moving-average form of the equation is For the additive version of Winters method (see ...
Q. I use Excel to do traditional linear forecasting, but I would like to upgrade to exponential smoothing for more accurate forecasts. Is there a way to do this in Excel? A. Accurate forecasting is ...
Depending on the smoothing model, the smoothing weights consist of the following: is a level smoothing weight. is a trend smoothing weight. is a seasonal smoothing weight. is a trend damping weight.
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