Miss2Sys creates SPSS syntax to recode all missing values
of numeric variables of a specific SPSS data file (*.sav) to
system missing values.

The script creates the SPSS syntax needed to recode the
numeric variables, will run the syntax, and will save the
modified data as an SPSS data file with the extension .RSav
into the directory of the original data file.

If the script has finished the user has to save the SPSS syntax
(as an .sps-file) by himself.

WARNING: Close or save your SPSS data file before running the
script because it will not save a current data file and will
close it without a warning!