Summary of Functions :: SAS/QC(R) 13.1 User's Guide

Summary of Functions

Table 14.3, Table 14.4, and Table 14.5 classify the OPTEX statements and options by function.

Table 14.3: 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= $p_1,p_2,\ldots$
Optimality Criteria
Minimize trace of $(X’X)^{-1}$	GENERATE	CRITERION=A
Maximize $\|X’X\|$	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 b blocks of size k	BLOCKS	STRUCTURE= $(b)k$ <options>
Options for block specifications
Repeat the search n times		ITER=n
Retain best m searches		KEEP=m
Select initial design at random		INIT=RANDOM
Select initial design in order		INIT=CHAIN
Initial Design Characteristics
Random and sequential methods	GENERATE	INITDESIGN=PARTIAL $<(m)>$
Random initial design	GENERATE	INITDESIGN=RANDOM
Sequential initial design	GENERATE	INITDESIGN=SEQUENTIAL
Specify initial design	GENERATE	INITDESIGN=SAS-data-set

Table 14.4: Summary of Options for Searching for the Design

Function	Statement	Option
Design Search Specification
Retain best n searches	GENERATE	KEEP=n
Search n times	GENERATE	ITER=n
Specify candidate points	PROC OPTEX	DATA=SAS-data-set
Specify random seed	PROC OPTEX	SEED=number
Specify effective zero	PROC OPTEX	EPSILON= $\epsilon$
Design Search Methods
DETMAX algorithm with maximum excursion level	GENERATE	METHOD=DETMAX<(level)>
Exchange algorithm	GENERATE	METHOD=EXCHANGE
k-Exchange algorithm	GENERATE	METHOD=EXCHANGE $<(k)>$
Sequential algorithm	GENERATE	METHOD=SEQUENTIAL
Fedorov algorithm	GENERATE	METHOD=FEDOROV
Modified Fedorov algorithm	GENERATE	METHOD=M_FEDOROV

Table 14.5: 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 $X’X$	EXAMINE	INFORMATION
Specific optimal design	EXAMINE	NUMBER=design-number
Variance matrix $(X’X)^{-1}$	EXAMINE	VARIANCE
Suppress all output	PROC OPTEX	NOPRINT