ESTIMATE Statement

The NLMIXED Procedure

ESTIMATE Statement

ESTIMATE 'label' expression <options> ;

The ESTIMATE statement enables you to compute an additional estimate that is a function of the parameter values. You must provide a quoted string to identify the estimate and then a valid SAS expression. Multiple ESTIMATE statements are permitted, and results from all statements are listed in a common table. Standard errors are computed using the delta method (Billingsley 1986). The ECOV and ECORR options in the PROC NLMIXED statement add the approximate covariance and correlation matrices, respectively.

The following options are available in the ESTIMATE statement:

ALPHA= $\alpha$: specifies the alpha level to be used in computing t statistics and intervals. The default value corresponds to the ALPHA= option in the PROC NLMIXED statement.
DF=d: specifies the degrees of freedom to be used in computing t statistics and intervals. The default value corresponds to the DF= option in the PROC NLMIXED statement.

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