MISSING Subcommand (PLUM command)

By default, cases with missing values for any of the variables on the variable list are excluded from the analysis. The MISSING subcommand allows you to include cases with user-missing values.

• If MISSING is not specified, the default is EXCLUDE.
• Listwise deletion is always used in this procedure.
• Keywords EXCLUDE and INCLUDE are mutually exclusive. Only one of them can be specified and only once.

EXCLUDE. Exclude both user-missing and system-missing values. This is the default.

INCLUDE. User-missing values are treated as valid. System-missing values cannot be included in the analysis.