Developer Documentation Library > Data Model > Available DSCs > SPSS Statistics SAV DSC > Writing to an SPSS Statistics .sav file > Variable definitions when writing to a .sav file > Non-categorical variables
 
Non-categorical variables
For all MDM variable types, with the exception of text variables, if the response to the MDM variable is a NULL value, the SPSS Statistics SAV DSC writes the system-missing values (see Missing values when writing to a .sav file) to the corresponding IBM SPSS Statistics variable.
See also
Variable definitions when writing to a .sav file