## STRUCTEQ Statement

**STRUCTEQ** * variable < variable ... > ***;**

The STRUCTEQ statement is used to list the dependent
variables of the structural equations. This statement is
ignored if you omit the PDETERM option.
This statement is useful because the term *structural
equation* is not defined in a unique way, and PROC CALIS
has difficulty identifying the structural equations.
If LINEQS statements are used, the names of the left-hand-side
(dependent) variables of those equations to be treated as
structural equations should be listed in the STRUCTEQ
statement.
If the RAM statement is used,
variable names in the STRUCTEQ statements depend on
the VARNAMES statement:

- If the VARNAMES statement is used, variable names
must correspond to those in the VARNAMES statement.
- If the VARNAMES statement is not used,
variable names must correspond to the names
of manifest variables or latent (F) variables.

The STRUCTEQ statement also defines the names of
variables used in the causal coefficient matrix of
the structural equations, **B**, for computing the
*Stability Coefficient of Reciprocal Causation*
(the largest eigenvalue of the **B****B**' matrix).
If the PROC CALIS option PDETERM is used without the STRUCTEQ
statement, the structural equations are defined as
described in the PDETERM option. See the PROC CALIS option
PDETERM for more details.

Copyright © 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.