The SSM Procedure (Experimental)

Programming Statements

To define the model, you can use most of the programming statements that are allowed in the SAS DATA step. See the SAS Language Reference: Dictionary for more information. The syntax of programming statements used in PROC SSM is identical to that used in the MODEL procedure (see Chapter 19: The MODEL Procedure,) and the NLMIXED procedure (see Chapter 64: The NLMIXED Procedure in SAS/STAT 12.1 User's Guide,). Additional restrictions are that the DATA step lagging and differencing functions are not allowed.