PROC OPTEX: Summary of Functions

The OPTEX Procedure

Summary of Functions

Table 10.3, Table 10.4, and Table 10.5 classify the OPTEX statements and options by function.

Table 10.3 Summary of Options for Specifying the Design
Function	Statement	Option
Design Characteristics
Number of design points	GENERATE	N=number
Saturated design	GENERATE	N=SATURATED
Augmented design	GENERATE	AUGMENT=SAS-data-set
Bayesian optimal design	MODEL	/ PRIOR= $\text{[math]}$
Optimality Criteria
Minimize trace of $\text{[math]}$	GENERATE	CRITERION=A
Maximize $\text{[math]}$	GENERATE	CRITERION=D
Minimize mean minimum	GENERATE	CRITERION=U
distance to design
Maximize mean distance	GENERATE	CRITERION=S
between nearest design points
Model Specification
Specify independent effects	MODEL	effects
Exclude intercept term	MODEL	effects NOINT
Specify CLASS variables	CLASS	variables
Specify CLASS variable parameterization	CLASS	/ PARAM=parameterization
Display CLASS variable parameterization	PROC OPTEX	CLASSPARAM
Static coding	PROC OPTEX	CODING=STATIC
Orthogonal coding	PROC OPTEX	CODING=ORTH
Orthogonal coding with	PROC OPTEX	CODING=ORTHCAN
respect to candidates only
Suppress coding of effects	PROC OPTEX	NOCODE
Block Specification
Specify general covariance	BLOCKS	COVAR=SAS-data-set <options>
matrix for runs		VAR=variables
Specify general covariate model	BLOCKS	DESIGN=SAS-data-set <options>
Specify $\text{[math]}$ blocks of size $\text{[math]}$	BLOCKS	STRUCTURE= $\text{[math]}$ <options>
Options for block specifications
Repeat the search $\text{[math]}$ times		ITER= $\text{[math]}$
Retain best $\text{[math]}$ searches		KEEP= $\text{[math]}$
Select initial design at random		INIT=RANDOM
Select initial design in order		INIT=CHAIN
Initial Design Characteristics
Random and sequential methods	GENERATE	INITDESIGN=PARTIAL $\text{[math]}$
Random initial design	GENERATE	INITDESIGN=RANDOM
Sequential initial design	GENERATE	INITDESIGN=SEQUENTIAL
Specify initial design	GENERATE	INITDESIGN=SAS-data-set

Table 10.4 Summary of Options for Searching for the Design
Function	Statement	Option
Design Search Specification
Retain best $\text{[math]}$ searches	GENERATE	KEEP= $\text{[math]}$
Search $\text{[math]}$ times	GENERATE	ITER= $\text{[math]}$
Specify candidate points	PROC OPTEX	DATA=SAS-data-set
Specify random seed	PROC OPTEX	SEED=number
Specify effective zero	PROC OPTEX	EPSILON= $\text{[math]}$
Design Search Methods
DETMAX algorithm with maximum excursion level	GENERATE	METHOD=DETMAX<(level)>
Exchange algorithm	GENERATE	METHOD=EXCHANGE
$\text{[math]}$ -Exchange algorithm	GENERATE	METHOD=EXCHANGE $\text{[math]}$
Sequential algorithm	GENERATE	METHOD=SEQUENTIAL
Fedorov algorithm	GENERATE	METHOD=FEDOROV
Modified Fedorov algorithm	GENERATE	METHOD=M_FEDOROV

Table 10.5 Summary of Options for Examining and Saving the Design
Function	Statement	Option
Save the Design
Best design	OUTPUT OUT=SAS-data-set
Specific design	OUTPUT OUT=SAS-data-set	NUMBER=design-number
Block variable name	OUTPUT OUT=SAS-data-set	BLOCK=variable-name
Specify transfer variables	ID	variables
List the Design
Design characteristics	EXAMINE
Design points	EXAMINE	DESIGN
Information matrix $\text{[math]}$	EXAMINE	INFORMATION
Specific optimal design	EXAMINE	NUMBER=design-number
Variance matrix $\text{[math]}$	EXAMINE	VARIANCE
Suppress all output	PROC OPTEX	NOPRINT

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