Note the following points about LSMeans Effects:
• When the experimental design is balanced, LSMeans are the same as simple effect means.
• When the experimental design is unbalanced, LSMeans are estimates of effect means that would have been observed if the experimental design had been balanced.
• The differences between LSMeans form hypotheses of interest for which to compute power. You can specify which differences to use on the Test tab.Important: LSMeans Effects must also be listed as Fixed Effects, and all variables comprising them must be listed as Class Variables.
To specify interactions between effect, type an asterisk (*) between the effects. For example, assuming A and B are listed as Class Variables, typing A B A*B specifies variables A and B, and the interaction between A and B, as effects.
A vertical bar (|) can be used to create main effects and interactions. For example, typing A|B is the same as typing A B A*B.