DESIGN Subcommand (HILOGLINEAR command)

By default, HILOGLINEAR uses a saturated model that includes all variables on the variable list. The model contains all main effects and interactions for those variables. Use DESIGN to specify a different generating class for the model.

• If DESIGN is omitted or included without specifications, the default model is estimated. When DESIGN is omitted, a warning message is issued.
• To specify a design, list the highest-order terms, using variable names and asterisks (*) to indicate interaction effects.
• In a hierarchical model, higher-order interaction effects imply lower-order interaction and main effects. V1*V2*V3 implies the three-way interaction V1 by V2 by V3, two-way interactions V1 by V2, V1 by V3, and V2 by V3, and main effects for V1, V2, and V3. The highest-order effects to be estimated are the generating class.
• Any PRINT, PLOT, CRITERIA, METHOD, and MAXORDER subcommands that apply to a DESIGN subcommand must appear before it.
• All variables named on DESIGN must be named or implied on the variable list.
• You can specify more than one DESIGN subcommand. One model is estimated for each DESIGN subcommand.
• If the last subcommand on HILOGLINEAR is not DESIGN, the default model will be estimated in addition to models explicitly requested. A warning message is issued for a missing DESIGN subcommand.