MISSING Subcommand (MLP command)

The MISSING subcommand is used to control whether user-missing values for categorical variables—that is, factors and categorical dependent variables—are treated as valid values. By default, user-missing values for categorical variables are treated as invalid.

• User-missing values for scale variables are always treated as invalid.
• System-missing values for any variables are always treated as invalid.

USERMISSING = EXCLUDE. User-missing values for categorical variables are treated as invalid. This is the default.

USERMISSING = INCLUDE. User-missing values for categorical variables are treated as valid values.