MISSING Subcommand (SELECTPRED command)
The MISSING
subcommand controls
whether user-missing values for categorical 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 setting is the default.
USERMISSING=INCLUDE. User-missing values for categorical variables are treated as valid values.