BookmarkSubscribeRSS Feed
☑ This topic is solved. Need further help from the community? Please sign in and ask a new question.
SP01
Obsidian | Level 7

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 . .
1 ACCEPTED SOLUTION

Accepted Solutions
Patrick
Opal | Level 21

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;

 

View solution in original post

1 REPLY 1
Patrick
Opal | Level 21

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;

 

sas-innovate-2024.png

 

Time is running out to save with the early bird rate. Register by Friday, March 1 for just $695 - $100 off the standard rate.

 

Check out the agenda and get ready for a jam-packed event featuring workshops, super demos, breakout sessions, roundtables, inspiring keynotes and incredible networking events. 

 

Register now!

How to Concatenate Values

Learn how use the CAT functions in SAS to join values from multiple variables into a single value.

Find more tutorials on the SAS Users YouTube channel.

Click image to register for webinarClick image to register for webinar

Classroom Training Available!

Select SAS Training centers are offering in-person courses. View upcoming courses for:

View all other training opportunities.

Discussion stats
  • 1 reply
  • 328 views
  • 1 like
  • 2 in conversation