Choose DOE > Mixture Design and make the design data table. To fit a model, the Y column in the data table must contain values. Either assign responses or select Simulate Responses from the red triangle menu before you click Make Table.
Right-click the model and select Run Script to open the Fit Model launch window, which is automatically filled with the saved model.
Click Run on the Fit Model window.
The hidden-intercept property also causes the R2 to be reported with respect to the intercept model rather than reported as missing.