Modeling and Multivariate Methods - SAS

Chapter 20 Performing Discriminant Analysis 501
Commands and Options
Figure 20.8 Canonical 3D Plot
The example in Figure 20.8 is displayed by:
1. Open cereal.jmp.
2. Click on Analyze > Multivariate Methods > Discriminant.
3. Specify Calories, Protein, Fat, and Sodium as Y, Covariates.
4. Specify Manufacturer as X, Categories and click OK.
5. Click on the red triangle in the Discriminant Analysis title bar and select Canonical 3D Plot.
6. Click inside the plot and rotate the plot until you see the desired effect.
Specify Priors lets you specify the prior probabilities for each level of the X variable:
Equal Probabilities
assigns an equal probability to each level.
Proportional to Occurrence
assigns probabilities to each level according to their frequency in the data.
Other brings up a dialog to allow custom specification of the priors, shown in Figure 20.9. By default,
each level is assigned equal probabilities.