Often, the OUT= or OUTSTAT= data sets that many SAS/STAT procedures create are of special data types, such as TYPE=CORR, COV, DISTANCE, EST, LINEAR, TREE, and so on. See Appendix A, Special SAS Data Sets, for more information about special data sets.
The order of observations in these special data sets might be critical for clear interpretations and proper subsequent analyses. Saving these special output data sets to CAS tables, especially when internal variables such as _NAME_ and _TYPE_ are not created by a procedure, might not retain the intended data order persistently and therefore is not recommended. For example, you might not be able to visualize a symmetric correlation matrix when you print an output CAS table that contain elements of a correlation matrix. Although many SAS/STAT procedures create special internal variables such as _NAME_ and _TYPE_ that you can use to recover the order of the data, in general you should avoid saving special output data sets as CAS tables.