CLASSMISSING Subcommand (CSSELECT command)

CLASSMISSING is used to control whether user-missing values of classification (stratification and clustering) variables are treated as valid values. By default, they are treated as invalid.

EXCLUDE. User-missing values of stratification and cluster variables are treated as invalid. This is the default.

INCLUDE. User-missing values of stratification and cluster variables are treated as valid values.

CSSELECT always treats user-missing values of measure variables (previous weight, MOS, size, and rate) as invalid.