SPSS® 12.0 Command Syntax Reference

Example
DATA LIST 421
INPUT PROGRAM.
NUMERIC TINCOME (DOLLAR8.0). /* Total income
LEAVE TINCOME.
DO IF $CASENUM EQ 1.
+ PRINT EJECT.
+ PRINT / ’Name Income’.
END IF
DATA LIST FILE=INCOME END=#EOF NOTABLE / NAME 1-10(A)
INCOME 16-20(F).
DO IF #EOF.
+ PRINT / ’TOTAL ’, TINCOME.
+ END FILE.
ELSE.
+ PRINT / NAME, INCOME (A10,COMMA8).
+ COMPUTE TINCOME = TINCOME+INCOME. /* Accumulate total income
END IF.
END INPUT PROGRAM.
EXECUTE.
• The data definition commands are enclosed within an INPUT PROGRAM—END INPUT
PROGRAM structure.
• NUMERIC indicates that a new numeric variable, TINCOME, will be created.
• LEAVE tells the program to leave variable TINCOME at its value for the previous case as
each new case is read, so that it can be used to accumulate totals across cases.
• The first DO IF structure, enclosing the PRINT EJECT and PRINT commands, tells the
program to display the headings Name and Income at the top of the display (when
$CASENUM equals 1).
• DATA LIST defines variables NAME and INCOME, and it specifies the scratch variable #EOF
on the END subcommand.
• The second DO IF prints the values for NAME and INCOME and accumulates the variable
INCOME into TINCOME by passing control to ELSE as long as #EOF is not equal to 1. At
the end of the file, #EOF equals 1, and the expression on DO IF is true. The label TOTAL
and the value for TINCOME are displayed, and control is passed to END FILE.