MODEL Subcommand (PLS command)

The MODEL subcommand is used to specify model effects.

• Specify a list of terms to be included in the model.
• If the MODEL subcommand is not specified, the default model includes main effects for any categorical predictors and covariates.
• To include a term for the main effect of a categorical predictor or covariate, enter the name of the variable.
• To include a term for an interaction among predictors, use the keyword BY or the asterisk (*) to join the variables involved in the interaction. For example, A*B means a two-way interaction effect of A and B. A*A is not allowed because variables inside an interaction effect must be distinct.
• Interactions among covariates are valid, as are interactions between categorical predictors and covariates.
• Nested terms are not supported in the PLS procedure.