1. Proc Freq
Proc Tabulate
Canicia Smith
caniciasmith@gmail.com
Office hour: Wed 13:10-14:00

2. PROC FREQ

3. What is proc freq?
• Proc freq is used to produce one-way and n-
way frequency and cross tabulation
• For 2-way tables proc freq computes tests and
measures of association
• Performs stratified analysis, computing
statistics within and across layers

4. PROC FREQ
Proc freq options;
By MOSLTY
Exact
USED
Output
Tables
Test
Weight

5. Proc freq;
tables

6. An experiment is conducted with boys and girls
in 3 cities in Taiwan.

7. Proc freq

8. Weight （frequency）

9. Tables with/without weight Always use
weight
有
沒有

10. No column no row no percent

11. list

12. PROC TABULATE

13. What is proc tabulate
• It produces one, two,or three dimensional tables
• It displays descriptive statistics
• It is more powerful that PROC FREQ when making
tables
• It is more flexible than PROC MEANS

14. Proc tabulate option;
class
var
freq
format
label
by
table

15. 4 patients go to visit the doctor 3 times for 2 kinds
treatments. After each visit they’re given 2 scores

17. QUESTIONS?