dnl * MISSING, OTHERNM
dnl * strings
dnl - PPROPERTIES:
-dnl * )LABEL[N].
dnl * summary statistics and formats?
dnl
dnl Features not yet tested:
dnl - Date/time variables and values
dnl - Special formats for summary functions: NEGPAREN, NEQUAL, PAREN, PCTPAREN.
dnl - TITLES: )DATE, )TIME, )TABLE.
+dnl - PPROPERTIES:
+dnl * )LABEL[N].
dnl
dnl Not for v1:
dnl - Multiple response sets