MOVING AVERAGE ANALIZE TIME SERIES IN AN UNCERTAINLY COVID TIME

Hi, Today I'm going to introduce one way to analize data time series to forecasting economic variables like "sales". It is claire that economic changes have change the index based in which we calculated trend and seasonal of time series. After one year of the evolution, we are ready to analize data deeming last 4th quarters, and we could estimate the forecast comparing with the same quater before, in order to know the behavior of our variables.