I want to keep all rows of same id as long as this id has at least one record of type=2.
The dataset I have is:
data have;
input id type visit_date :yymmdd10.;
format visit_date yymmdd10.;
datalines;
1 1 2000-01-01
1 2 2005-01-02
1 2 2006-01-03
1 3 2007-01-04
1 5 2010-01-05
2 . 2000-01-06
2 . 2000-01-07
2 . 2000-01-08
3 2 2001-01-09
3 . 2006-01-10
3 2 2007-01-11
3 . 2008-01-12
4 . 2006-01-10
4 3 2007-01-11
4 1 2008-01-12
5 2 2007-01-11
5 2 2008-01-12
5 2 2009-01-10
5 2 2010-01-11
6 2 2002-01-12
6 1 2003-01-10
6 . 2004-01-11
;
What I want:
data have;
input id type visit_date :yymmdd10.;
format visit_date yymmdd10.;
datalines;
1 1 2000-01-01
1 2 2005-01-02
1 2 2006-01-03
1 3 2007-01-04
1 5 2010-01-05
3 2 2001-01-09
3 . 2006-01-10
3 2 2007-01-11
3 . 2008-01-12
5 2 2007-01-11
5 2 2008-01-12
5 2 2009-01-10
5 2 2010-01-11
6 2 2002-01-12
6 1 2003-01-10
6 . 2004-01-11
;
There are multiple ways to do this:
Try:
proc sql;
select *
from have
where id in
(select distinct id
from have
where type = 2);
quit;
There are multiple ways to do this:
Try:
proc sql;
select *
from have
where id in
(select distinct id
from have
where type = 2);
quit;
Registration is open! SAS is returning to Vegas for an AI and analytics experience like no other! Whether you're an executive, manager, end user or SAS partner, SAS Innovate is designed for everyone on your team. Register for just $495 by 12/31/2023.
If you are interested in speaking, there is still time to submit a session idea. More details are posted on the website.
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.