i need to find subjects which has same visit 6 and 7 dates. what is the most simple way to do that
subj | visit | date |
2568 | 1 | 06-11-2015 |
2568 | 2 | 11-12-2015 |
2568 | 3 | 06-01-2016 |
2568 | 4 | 22-01-2016 |
2568 | 5 | 18-03-2016 |
2568 | 6 | 20-05-2016 |
2568 | 7 | 17-06-2016 |
Sort the data, then use retain or lag functions. Or merge the two where visit=6 and visit=7. As mentioned in all your other posts:
Post test data in the form of a datastep!
Sort the data, then use retain or lag functions. Or merge the two where visit=6 and visit=7. As mentioned in all your other posts:
Post test data in the form of a datastep!
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