The LOGISTIC Procedure


  • NLOPTIONS <options>;

The NLOPTIONS statement controls the optimization process for conditional analyses (which result from specifying a STRATA statement) and for partial parallel slope models (which result from specifying the EQUALSLOPES or UNEQUALSLOPES option in the MODEL statement). An option that is specified in the NLOPTIONS statement takes precedence over the same option specified in the MODEL statement.

The default optimization techniques are chosen according to the number of parameters, p, as follows:

  • Newton-Raphson with ridging when p $<$ 40

  • quasi-Newton when 40 $\le $ p $<$ 400

  • conjugate gradient when p $\ge $ 400

The available options are described in the section NLOPTIONS Statement in Chapter 19: Shared Concepts and Topics.