The FORECAST function in Excel is used to predict a future value by using linear regression. ETS.STAT - returns statistical values for time series forecasting.ETS.SEASONALITY - calculates the length of a seasonal or other recurring pattern.ETS.CONFINT - calculates the confidence interval.ETS - predicts future values based on the exponential smoothing algorithm.
These functions are only available in Excel for Office 365, Excel 2019, and Excel 2016. The four ETS functions are purposed for exponential smoothing forecasts. LINEAR - identical to the FORECAST function part of the new suite of forecasting functions in Excel 2016 and Excel 2019.FORECAST - predicts future values by using linear regression a legacy function for backwards compatibility with Excel 2013 and earlier.In the recent versions of Excel, there exist six different forecasting functions.
