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SPSS® 12.0 Command Syntax Reference

SPSS® 12.0 Command Syntax Reference

SPSS® 12.0 Command Syntax Reference

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1064 NOMREG<br />

Overview<br />

Options<br />

NOMREG is a procedure for fitting a multinomial logit model to a polytomous nominal<br />

dependent variable.<br />

Tuning the algorithm. You can control the values of algorithm-tuning parameters with the<br />

CRITERIA subcommand.<br />

Optional output. You can request additional output through the PRINT subcommand.<br />

Exporting the model. You can export the model to an external file. The model information will<br />

be written using the Extensible Markup Language (XML).<br />

Basic Specification<br />

The basic specification is one dependent variable.<br />

<strong>Syntax</strong> Rules<br />

• Minimum syntax—at least one dependent variable must be specified.<br />

• The variable specification must come first.<br />

• Subcommands can be specified in any order.<br />

• Empty subcommands except the MODEL subcommand are ignored.<br />

• The MODEL and the FULLFACTORIAL subcommands are mutually exclusive. Only one of<br />

them can be specified at any time.<br />

• The MODEL subcommand stepwise options and the TEST subcommand are mutually exclusive.<br />

Only one of them can be specified at any time.<br />

• When repeated subcommands except the TEST subcommand are specified, all specifications<br />

except the last valid one are discarded.<br />

• The following words are reserved as keywords or internal commands in the NOMREG<br />

procedure: BY, WITH, WITHIN.<br />

• The set of factors and covariates used in the MODEL subcommand (or implied on the<br />

FULLFACTORIAL subcommand) must be a subset of the variable list specified or implied<br />

on the SUBPOP subcommand.<br />

Variable List<br />

The variable list specifies the dependent variable and the factors in the model.<br />

• The dependent variable must be the first specification on NOMREG. It can be of any type<br />

(numeric or string). Values of the dependent variable are sorted according to the ORDER<br />

specification.

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