November 2009
Intermediate to advanced
332 pages
10h 8m
English
Content preview from Combining and Modifying SAS® Data Sets: Examples Second Edition
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Example 3.9 Generating Every Combination of Rows (Cartesian Product) between Tables
Goal
Combine two tables that have no common columns in order to produce every possible combination of rows.
Example Features
| Featured Step | PROC SQL |
| Featured Step Options and Statements | Cartesian product |
| Related Technique | DATA step, multiple SET statements, NOBS= and POINT= options |
Input Tables
Table TRIAL_A has the identifiers for a group of patients who are participating in a clinical trial. Table TRIAL_TESTS contains the lab tests for this trial. There are no columns in common between the two tables.
TRIAL_A
Obs patientid patientinits
1 KPGY AHB
2 MWGM DOH
3 PQZU LRH
4 FQ82 HCI
5 EYPS MEF
TRIAL_TESTS
Obs testcode testtype 1 L001 Cholesterol 2 L002 Glucose 3 ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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