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The SURVEYPHREG Procedure

NLOPTIONS Statement
NLOPTIONS <options> ;

The NLOPTIONS statement specifies details of the nonlinear optimization used by PROC SURVEYPHREG to maximize the log-likelihood function. By default, the procedure uses the Newton-Raphson optimization technique. For more information about the NLOPTIONS statement, see the section NLOPTIONS Statement in Chapter 19, Shared Concepts and Topics.

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