To launch the Model Comparison platform, select Analyze > Modeling > Model Comparison.
The Model Comparison Launch Window
For a categorical response with k levels, the model fitting platform saves k columns to the data table, each predicting the probability for a level. All k columns need to be specified as Y, Predictors.
If you do not specify the Y, Predictors columns in the launch window, JMP finds the prediction formula columns in the data table. Prediction formula columns have either the Predicting or Response Probability column property.