## IDENTITY Statement

**IDENTITY** * equation ;*

The IDENTITY statement specifies linear relationships among variables
to write to the OUTEST= data set.
It provides extra information in the OUTEST= data set but
does not create or compute variables.
The OUTEST= data set can be processed by the SIMLIN procedure in a later step.

The IDENTITY statement is also used to compute reducedform coefficients
when the REDUCED option in the PROC SYSLIN statement is specified.
See "Reduced Form Estimates" in the section "Computational Details"
later in this chapter for more information.

The *equation* given by the IDENTITY statement has the same form as
equations in the MODEL statement.
A label can be specified for an IDENTITY statement as follows:

*label***: IDENTITY ... ;**

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