The CUSTOMER_RESPONSE data set contains data from a
customer survey. Each observation in the data set contains information about
factors that influence one respondent's decisions to buy products. A DATA step creates the
data set. Using missing values rather than 0's is crucial for calculating
frequency counts in PROC TABULATE.
data customer_response;
input Customer Factor1-Factor4 Source1-Source3
Quality1-Quality3;
datalines;
1 . . 1 1 1 1 . 1 . .
2 1 1 . 1 1 1 . 1 1 .
3 . . 1 1 1 1 . . . .
. . . more lines of data . . .
119 . . . 1 . . . 1 . .
120 1 1 . 1 . . . . 1 .
;