![]() |
![]() |
Shared Concepts and Topics |
Numeric variables, or polynomial terms involving them, can be included in the model as regression effects (covariates). The actual values of such terms are included as columns of the relevant model matrices. You can use the bar operator with a regression effect to generate polynomial effects. For instance, X|X|X expands to X X*X X*X*X, a cubic model.
![]() |
![]() |
Copyright © 2009 by SAS Institute Inc., Cary, NC, USA. All rights reserved.