Running the Analysis
To apply models:
- From the menus choose:
Figure 1. Apply Time Series Models dialog box 
- Click Browse, then navigate to and select broadband_models.xml (or choose your own model file saved from the previous example). See the topic Sample Files for more information.
- Select Reestimate from data.
To incorporate new values of your time series into forecasts, the Apply Time Series Models procedure will have to reestimate the model parameters. The structure of the models remains the same though, so the computing time to reestimate is much quicker than the original computing time to build the models.
The set of cases used for reestimation needs to include the new data. This will be assured if you use the default estimation period of First Case to Last Case. If you ever need to set the estimation period to something other than the default, you can do so by selecting Based on time or case range in the Select Cases dialog box.
- Select First case after end of estimation period through a specified date in the Forecast Period group.
- In the Date grid, enter 2004 for the year and 6 for the month.
The dataset contains data from January 1999 through March 2004. With the current settings, the forecast period will be April 2004 through June 2004.
- Click the Save tab.
Figure 2. Apply Time Series Models, Save tab 
- Select (check) the entry for Predicted Values
in the Save column and leave the
default value Predicted as the
Variable Name Prefix.
The model predictions will be saved as new variables in the active dataset, using the prefix Predicted for the variable names.
- Click the Plots tab.
Figure 3. Apply Time Series Models, Plots tab 
- Deselect Series in the Plots for Individual Models group.
This suppresses the generation of series plots for each of the models. In this example, we are more interested in saving the forecasts as new variables than generating plots of the forecasts.
- Click OK in the Apply Time Series Models dialog box.