Workspace Node: SANN Regression/Time Series Regression - Results - Predictions Tab

In the SANN Regression node dialog box or the SANN Time Series (Regression) node dialog box, under the Results heading, select the Predictions tab to access the following options.

Element Name Description
Predictions spreadsheet
Predictions type Select the set of predictions to be included in the prediction spreadsheet.
Note: For the Ensemble and Standalones and ensemble options to be available:
  • When ANS is selected on the Specifications - Quick tab, the Networks to retain (on Specifications - Quick Specification tab) must be equal to or greater than 2.
  • When CNN is selected on the Specifications - Quick tab, the Networks to train (on the Specifications - Quick Specification tab) must be equal to or greater than 2.
  • When Subsampling is selected on the Specifications - Quick tab, the Number of subsamples (on the Specifications - Subsampling tab) must be equal to or greater than 2.
Standalones Select this option button to include the predictions for individual networks.
Ensemble Select this option button to include the predictions for an ensemble of all networks.
Standalones and ensemble Select this option button to include predictions for the individual networks and an ensemble of all networks.
Predictions Select this check box to generate a spreadsheet of model predictions. The precise details shown are controlled by the options selected in the Predictions type, Include and Samples group boxes (Samples group box is located on the Samples tab). Generally speaking, when creating spreadsheets, SANN always tries to present the results in as much of a compact form as possible. For example, when you create a predictions spreadsheet for a number of active networks, SANN will normally include the predictions in one single spreadsheet. However, this is only possible when the networks use the same train/test/validation samples, which is always the case for Automatic Network Search (ANS) and Custom Neural Networks (CNN) network building strategies. However, since Subsampling uses different permutations of the data set to create train/test/validation samples for each and every individual network, what constitutes a training case for one network may be a test or validation case (or none of the above) for another. In this case, it is no longer possible to consistently present the network outputs in one single spreadsheet. Therefore, whenever your active networks are created using different samples, SANN creates a predictions spreadsheet for each individual network plus one more for the ensemble (should you request ensemble outputs). Otherwise, all network and ensemble predictions are placed in one spreadsheet.
Include Use the options in this group box to (optionally) include additional information in the predictions spreadsheet. Available options are dependent on the network type.
Inputs Select this check box to include the input variables in the Predictions spreadsheet.
Targets Select this check box to include the target variables in the Predictions spreadsheet.
Output Select this check box to include the actual predictions in the Predictions spreadsheet.
Residuals Select this check box to include the residual values in the Predictions spreadsheet. Residual is calculated as observed - predicted (i.e., target - output).
Absolute res Select this check box to include the absolute value of the residual in the Predictions spreadsheet, i.e., |observed-predicted|.
Square res Select this check box to include the squared residual value in the Predictions spreadsheet (observed-predicted)2.
Standard res Select this check box to include the standardized residuals in the Predictions spreadsheet. Standardized residuals are calculated as (observed-prediction)/std. error of the prediction.
Variables Select this check box to include an arbitrary selection of variables from the data set in the Predictions spreadsheet. If you select the Predictions check box when this check box is selected, a variable selection dialog box will be displayed, enabling you to select the variables to include in the spreadsheet. Note that this option is only available when there are variables in the data set that have not been used as either inputs or targets.

Options / C / W. See Common Options.

OK Click the OK button to accept all the specifications made in the dialog box and to close it. The analysis results will be placed in the Reporting Documents node after running (updating) the project.