Overview (NOMREG command)

NOMREG is a procedure for fitting a multinomial logit model to a polytomous nominal dependent variable.

Options

Tuning the algorithm. You can control the values of algorithm-tuning parameters with the ­CRITERIA subcommand.

Optional output. You can request additional output through the PRINT subcommand.

Exporting the model. You can export the model to an external file. The model information will be written using the Extensible Markup Language (XML).

Basic Specification

The basic specification is one dependent variable.

Operations

  • This procedure uses the multithreaded options specified by SET THREADS and SET MCACHE.

Syntax Rules

  • Minimum syntax—at least one dependent variable must be specified.
  • The variable specification must come first.
  • Subcommands can be specified in any order.
  • Empty subcommands except the MODEL subcommand are ignored.
  • The MODEL and the FULLFACTORIAL subcommands are mutually exclusive. Only one of them can be specified at any time.
  • The MODEL subcommand stepwise options and the TEST subcommand are mutually exclusive. Only one of them can be specified at any time.
  • When repeated subcommands except the TEST subcommand are specified, all specifications except the last valid one are discarded.
  • The following words are reserved as keywords or internal commands in the NOMREG procedure: BY, WITH, and WITHIN.
  • The set of factors and covariates used in the MODEL subcommand (or implied on the FULLFACTORIAL subcommand) must be a subset of the variable list specified or implied on the SUBPOP subcommand.