SPSS System Variables

System variables track the current state of the interpretter.

The dollar sign ($) is a disallowed leading character for user-defined variables because this is reserved for system variables.

Contents

  1. SPSS System Variables
    1. CaseNum
    2. Time

CaseNum

$CASENUM holds the current case's row number.

To create an 8-digit unique identifier number, try: 

compute UniqueID = 10000000 + $casenum.

Time

$TIME holds the current date and time as the number of seconds from October 14, 1582, to the execution time of a command accessing it.

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