System Variables

The system variables described below may be used only in expressions.

• $CASENUM
  Case number of the case being processed. This changes as cases are added, deleted, and reordered.

• $DATE
  Date the PSPP process was started, in format A9, following the pattern DD-MMM-YY.

• $DATE11
  Date the PSPP process was started, in format A11, following the pattern DD-MMM-YYYY.

• $JDATE
  Number of days between 15 Oct 1582 and the time the PSPP process was started.

• $LENGTH
  Page length, in lines, in format F11.

• $SYSMIS
  System missing value, in format F1.

• $TIME
  Number of seconds between midnight 14 Oct 1582 and the time the active dataset was read, in format F20.

• $WIDTH
  Page width, in characters, in format F3.