Similar to print format, but used by the @cmd{WRITE} command
(@pxref{WRITE}).
+@cindex measurement level
+@item Measurement level
+Nominal, ordinal, or scale.
+
@cindex custom attributes
@item Custom attributes
User-defined associations between names and values. @xref{VARIABLE
@cindex @code{$DATE}
@item $DATE
Date the @pspp{} process was started, in format A9, following the
-pattern @code{DD MMM YY}.
+pattern @code{DD-MMM-YY}.
+
+@cindex @code{$DATE11}
+@item $DATE11
+Date the @pspp{} process was started, in format A11, following the
+pattern @code{DD-MMM-YYYY}.
@cindex @code{$JDATE}
@item $JDATE