On the Forecast
tab of the Double Exponential Smoothing
dialog box, complete the following steps to generate forecasts for your time series.
- Select Number of forecasts to generate and enter the number of consecutive time periods that you want forecasts for.
- (Optional) Select Generate from origin and enter the row number for the first forecast. Minitab uses only the data up to that row number for the forecasts. The forecast values differ from the trend line because Minitab uses all of the data to calculate the trend line values.