1 DATA LIST LIST NOTABLE /x y (F1.0) z (F10.0).
2 VARIABLE LEVEL z (SCALE).
3 MISSING VALUES x y (9).
15 CTABLES /TABLE x > y > z [SUM] /CATEGORIES VARIABLES=y MISSING=INCLUDE.
16 CTABLES /TABLE x > y > z [SUM] /CATEGORIES VARIABLES=x y MISSING=INCLUDE.