Note that for all three of these methods, RestPulse contributes least to the model. In the case of forward selection, it is not added to the model. In the case of backward selection, it is the first ...
The following example uses the fitness data from Example 55.1. Figure 55.27 shows the parameter estimates and the tables from the SS1, SS2, STB, CLB, COVB, and CORRB options: proc reg data=fitness; ...