KEEP and DROP Subcommands (READ MODEL command)

KEEP and DROP allow you to restore a subset of models. By default, all models in the model file are restored.

  • KEEP specifies the models to be restored.
  • DROP specifies the models to be excluded.
  • Models can be specified by using individual model names or the names of the procedures that created them. To use procedure names, you must specify COMMAND on the TYPE subcommand.
  • Model names are either the default MOD_n names or the names that are assigned with MODEL NAME.
  • If a procedure name is specified on KEEP, all models that are created by that procedure are restored; on DROP, all models that are created by the procedure are dropped.
  • Model names and procedure names cannot be mixed on a single READ MODEL command.
  • If more than one KEEP or DROP subcommand is specified, only the last subcommand is executed.
  • You can specify the keyword ALL on KEEP to restore all models in the model file. This setting is the default.
  • The stored model file is not affected by the KEEP or DROP specification on READ MODEL.

Example

READ MODEL FILE='ACFCCF.DAT'
  /KEEP=ACF1 ACF2.
  • In this example, only models ACF1 and ACF2 are restored from model file ACFCCF.DAT.