System files are specially formatted data files created by SPSS to enhance processing and data retrieval. Useful SPSS commands When creating an SPSS command file make sure to put all SPSS commands in the first column of the file. All command subcommands and qualifiers should always be indented. The command in use looks as follows. Data list - is the command and starts in column one of the command file.
Name is the user defined variable name.
The use of the command is as follows. If you are moving data between SPSS programs on different operating system platforms the following command will retrieve your data. Making sure the data was read in correctly You should always check to ensure that the data has been identified correctly. To do so use the LIST command. The list command tells SPSS to show your variable names and values associated with each.