Displaying Means for Model Terms in Factorial Designs
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You can display the means for just the main effects, the main effects and two-way interactions, or all terms in the model. Alternatively, you can display the means for a subset of these terms, or no terms. The table below shows what terms would be displayed for a model with four factors.

Display means for

Displays these terms

Main effects

A  B  C  D

Main effects and two-way interactions

A  B  C  D  
A*B  A*C  A*D  B*C  B*D  C*D

All terms

 

A  B  C  D  
A*B  A*C  A*D  B*C  B*D  C*D

A*B*C A*B*D A*C*D B*C*D

A*B*C*D