SPSS® 12.0 Command Syntax Reference

514 END CASE
Example
Figure 4 LIST output when END CASE is specified
HEAD1 HEAD2 INDIV
A C 9.1
C C 3.5
C C 4.3
B A 3.4
B B 4.2
B B 9.6
B B 3.7
Figure 5 LIST output when END CASE is not specified
HEAD1 HEAD2 INDIV
A C 9.1
C C 4.3
X X .
B A 3.4
B B 3.7
* Note: the following is an erroneous program! The COMPUTE and
PRINT commands that follow END CASE are misplaced. They should
be specified after the END INPUT PROGRAM command.
INPUT PROGRAM.
DATA LIST /#X1 TO #X3 (3(F1,1X)).
VECTOR V=#X1 TO #X3.
LOOP #I=1 TO 3.
COMPUTE X=V(#I).
END CASE.
END LOOP.
COMPUTE Y=X**2. /* This should be specified after the input program
VARIABLE LABELS X ’TEST VARIABLE’ Y ’SQUARE OF X’.
PRINT FORMATS X Y (F2).
END INPUT PROGRAM.
BEGIN DATA
2 1 1
3 5 1
END DATA.
FREQUENCIES VARIABLES=X Y.
• No error or warning is issued for these commands, but the result is not what was intended.
The computed value for X is passed out of the input program when the END CASE command
is encountered. Thus, Y is computed from the initialized value of X, which is the
system-missing value. As Figure 6 shows, all six cases computed for Y within the input
program have the system-missing value, represented by a period (.).