The following output is created by the FREQUENCY procedure:
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Which TABLES statement was used to completed the following program
that produced the output?
proc freq data=sales;
<_insert_code_>
run;
A. tables region product;
B. tables region,product;
C. tables region/product;
D. tables region*product;
Answer: D
注解：Comma and slash are invalid symbols in TABLES statement. Asterisk is used to create multi-way tables. By adding an asterisk between two variables, SAS creates a two-way crosstabulation table. In option A, using a space between two variables, SAS will create two one-way frequency tables:
| Region | Frequency | Percent | Cumulative Frequency |
Cumulative Percent |
| East | 4 | 44.44 | 4 | 44.44 |
| South | 5 | 55.56 | 9 | 100.00 |
| Product | Frequency | Percent | Cumulative Frequency |
Cumulative Percent |
| Corn | 4 | 44.44 | 4 | 44.44 |
| Cotton | 3 | 33.33 | 7 | 77.78 |
| Oranges | 2 | 22.22 | 9 | 100.00 |