|Details of the OPTEX Procedure
You can specify the following statements with the
OPTEX procedure. Items within the brackets < > are optional.
- PROC OPTEX < options > ;
- CLASS class-variables ;
- MODEL effects < / options> ;
- BLOCKS block-specification <options> ;
- EXAMINE <options> ;
- GENERATE <options> ;
- ID variables ;
- OUTPUT OUT= SAS-data-set <options> ;
To generate a design, you use the PROC OPTEX and
MODEL statements. You can use the other statements as needed.
The OPTEX procedure is interactive and allows you to use all
statements (except the PROC OPTEX statement) after the
first RUN statement.
Statement Ordering for Covariate Designs
You use the CLASS and MODEL statements to define a linear model for the
runs in the candidate data set. You can also use these statements to
define a general covariate model. In this case, list the CLASS and MODEL
statements that define the model for the candidate points directly after
the PROC OPTEX statement. Then list the CLASS and MODEL statements that
define the covariate model after the BLOCKS DESIGN= specification. Thus,
in this case, the ordering for these statements should be
Note also that a CLASS statement naming classification variables must
precede the MODEL statement that uses those variables.
- PROC OPTEX statement
- CLASS and MODEL statements for the candidate points
- BLOCKS DESIGN= statement
- CLASS and MODEL statements for the covariates
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