Hello I am using SAS 9.4 and I am trying to figure out how to delete dates that aren't in my desired date range just for one ID.
For example:
DATA : OLD
ID Date
1 1/2/2018
1 11/23/2017
1 12/12/2017
1 12/6/2017
1 1/16/2018
1 3/31/2018
1 10/25/2017
2 4/25/2017
2 9/26/2017
2 1/13/2018
2 12/1/2017
DATA WANT:
ID Date
1 1/2/2018
1 11/23/2017
1 12/12/2017
1 12/6/2017
2 4/25/2017
2 9/26/2017
2 1/13/2018
2 12/1/2017
I am trying to filter the dates that are not between 11/23/2017 and 1/2/2018 for just ID 1. I do not want ID 2 to change.
I am not sure how to go about this. Should I use an if statement?
Many thanks!
Hello @Kbug The solution is in your description "I am trying to filter the dates that are not between 11/23/2017 and 1/2/2018 for just ID 1. I do not want ID 2 to change." i.e Using between and logical operator
data have;
input ID Date : mmddyy10.;
format Date mmddyy10.;
datalines;
1 1/2/2018
1 11/23/2017
1 12/12/2017
1 12/6/2017
1 1/16/2018
1 3/31/2018
1 10/25/2017
2 4/25/2017
2 9/26/2017
2 1/13/2018
2 12/1/2017
;
proc sql;
create table want as
select *
from have
where id=1 and Date between '23nov2017'd and '02jan2018'd or id ne 1;
quit;
One way
data have;
input ID Date : mmddyy10.;
format Date mmddyy10.;
datalines;
1 1/2/2018
1 11/23/2017
1 12/12/2017
1 12/6/2017
1 1/16/2018
1 3/31/2018
1 10/25/2017
2 4/25/2017
2 9/26/2017
2 1/13/2018
2 12/1/2017
;
data want;
set have;
if ID=1 and (Date lt '23nov2017'd | Date gt '02jan2018'd) then delete;
run;
It ends up deleting all of ID dates, even if they fall in between the range. What does the lt and the gt mean in the if statement?
Hello @Kbug The solution is in your description "I am trying to filter the dates that are not between 11/23/2017 and 1/2/2018 for just ID 1. I do not want ID 2 to change." i.e Using between and logical operator
data have;
input ID Date : mmddyy10.;
format Date mmddyy10.;
datalines;
1 1/2/2018
1 11/23/2017
1 12/12/2017
1 12/6/2017
1 1/16/2018
1 3/31/2018
1 10/25/2017
2 4/25/2017
2 9/26/2017
2 1/13/2018
2 12/1/2017
;
proc sql;
create table want as
select *
from have
where id=1 and Date between '23nov2017'd and '02jan2018'd or id ne 1;
quit;
Are you ready for the spotlight? We're accepting content ideas for SAS Innovate 2025 to be held May 6-9 in Orlando, FL. The call is open until September 25. Read more here about why you should contribute and what is in it for you!
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.