To process an input CAS table properly or to interpret the output results correctly, special requirements are imposed in some procedures. Failing to satisfy these requirements results in an error. However, the requirements are not imposed when you use a SAS data set, for which a procedure can assume a persistent order of observations.
For example, for correct processing of the prior information, the GENMOD procedure requires the specification of the _NAME_ variable when you use a CAS table as the INPUT= data set for the normal priors in the BAYES statement. Alternatively, you can use a SAS data set that has the required or intended order of observations for the INPUT= data set.
For more information about special requirements when you use CAS tables in SAS/STAT procedures, see the section Special Requirements for Processing Some CAS Tables of Appendix C, Known Issues in Using CAS Tables with SAS/STAT Procedures.