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Posted 11-21-2023 10:01 AM
(1639 views)
The structure of the data I have is like below:
id | t_date | h_date | d_date | note |
1 | 8/30/2020 | . | . | |
1 | 8/30/2020 | . | . | keep any one row |
2 | 9/21/2021 | |||
2 | 9/21/2021 | 10/15/2021 | . | Retain only this one |
2 | 10/27/2021 | . | . |
this row |
3 | 12/11/2021 | . | . | remove this row |
3 | 12/11/2021 | 12/20/2021 | 1/1/2022 | retain this row |
4 | 2/5/2022 | . | . | |
4 | 3/19/2022 | . | . |
I want to de-duplicate if the rows have same ID, t_date and h_date, d_date is null. But if the rows have same ID & t_date, but either h_date or d_date is not null, I want to keep this row. I want to remove the row with the same ID having both h_date and d_date as null.
What I want is this structure below:
id | t_date | h_date | d_date |
1 | 8/30/2020 | . | . |
2 | 9/21/2021 | 10/15/2021 | . |
2 | 10/27/2021 | . | . |
3 | 12/11/2021 | 12/20/2021 | 1/1/2022 |
4 | 2/5/2022 | . | . |
4 | 3/19/2022 | . | . |
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Accepted Solutions
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Below could work. Code not tested because you didn't provide scripts that create the sample data.
proc sort data=have;
by id t_date h_date d_date;
run;
data want;
set have;
by id t_date h_date d_date;
if last.t_date;
run;
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Below could work. Code not tested because you didn't provide scripts that create the sample data.
proc sort data=have;
by id t_date h_date d_date;
run;
data want;
set have;
by id t_date h_date d_date;
if last.t_date;
run;