lists the alias structure of the design, which identifies effects that are confounded with one another and are thus, indistinguishable.

You can specify immediately after the ALIASING option for a listing of the alias structure with effects up to and including order . For example, the following statement requests aliases for up to fourth-order effects (for example, A*B*C*D):

examine aliasing(4);

Each line of the alias structure is listed in the form

effecteffecteffect

for as many effects as are aliased with one another.

The default value for is determined automatically from the model as follows:

• If you specify the model with a resolution number in the MODEL statement, then is the integer part of .

• If you specify the model with a list of effects in the MODEL statement, then is the larger of

  • one plus the largest order of an effect to be estimated

  • the largest order of an effect considered to be nonnegligible

where main effects have order 1, two-factor interactions have order 2, and so on. For details on aliasing, see the section Alias Structure.

lists the confounding rules used to construct the design. For the definition of confounding rules, see the sections Confounding Rules and Suitable Confounding Rules.

lists the points in the design in standard order with the factor levels coded. For a description of the randomization and coding rules, see the section OUTPUT Statement.