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;
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