The OUTEST= data set is made up of one row (with _TYPE_=‘PARM’) that contains each of the parameter estimates in the model. The second row (with _TYPE_=‘STD’) contains the standard errors for the parameter estimates in the model.

If you use the COVOUT option in the PROC COUNTREG statement, the OUTEST= data set also contains the covariance matrix for the parameter estimates. The covariance matrix appears in the observations with _TYPE_=‘COV’, and the _NAME_ variable labels the rows with the parameter names.

The names of the parameters are used as variable names. These are the same names as used in the INIT, BOUNDS, and RESTRICT statements.