Overview (SAVE MODEL command)

SAVE MODEL saves the models that are created by certain procedures in a model file. The saved model file can be read later in the session or in another session with the READ MODEL command.

Options

You can save a subset of models into the file using the DROP and KEEP subcommands. You can use the TYPE subcommand to control whether models are specified by model name or by the name of the procedure that generated them.

Basic Specification

The basic specification is the OUTFILE subcommand followed by a filename.

  • By default, SAVE MODEL saves all currently active models in the specified file. Each model that is saved in the file includes information such as the procedure that created it, the model name, the specified variable names, subcommands and specifications used, and parameter estimates. The names of the models are either the default MOD_n names or the names that are assigned on the MODEL NAME command. In addition to the model specifications, the TSET settings that are currently in effect are saved.

Subcommand Order

  • Subcommands can be specified in any order.

Syntax Rules

  • If a subcommand is specified more than once, only the last subcommand is executed.

Operations

  • SAVE MODEL is executed immediately.
  • Model files are designed to be written and read by specific procedures and should not be edited.
  • The active models are not affected by the SAVE MODEL command.
  • DATE specifications are not saved in the model file.
  • Models are not saved in IBM® SPSS® Statistics data files.
  • The following procedures can generate models that can be saved with the SAVE MODEL command: AREG, ARIMA, EXSMOOTH, SEASON, and SPECTRA in the Forecasting module; ACF, CASEPLOT, CCF, CURVEFIT, PACF, PPLOT, and TSPLOT in the Core system; and WLS and 2SLS in the Regression module.

Limitations

  • A maximum of one filename can be specified.
  • The READ MODEL command can only read models created by a SAVE MODEL command on the same operating system/platform.