Example Stream: Evaluate Model

The fourth example stream, 4_evaluate_model.str, illustrates the advantages of using IBM® SPSS® Modeler for in-database modeling. Once you have executed the model, you can add it back to your data stream and evaluate the model by using several tools offered in IBM SPSS Modeler.

Viewing Modeling Results

Attach a Table node to the model nugget to explore your results. The $O-field16 field shows the predicted value for field16 in each case, and the $OC-field16 field shows the confidence value for this prediction.

Evaluating Model Results

You can use the Analysis node to create a coincidence matrix showing the pattern of matches between each predicted field and its target field. Run the Analysis node to see the results.

You can use the Evaluation node to create a gains chart designed to show accuracy improvements made by the model. Run the Evaluation node to see the results.