I have data that has a character field with many vial numbers per patient. I want to split it out into an individual observation per subject for each vial.
For example, my data might look like this:
data subjects;
length subject $3 vials $33;
input subject $ vials $;
cards;
S01 10509,10511,10512
S02 09631,09636,09639,09640,09641
S03 11978,12059
;
run;
I want to get it into this form:
Subject | Vial |
---|---|
S01 | 10509 |
S01 | 10511 |
S01 | 10512 |
S02 | 09631 |
S02 | 09636 |
S02 | 09639 |
S02 | 09340 |
S02 | 09641 |
S03 | 11978 |
S03 | 12059 |
I would do this as
data want(drop=i vials);
set subjects;
i=1;
do while (scan(vials,i) ne "");
vial=scan(vials,i);
output;
i+1;
end;
run;
proc print data=want;
run;
I would do this as
data want(drop=i vials);
set subjects;
i=1;
do while (scan(vials,i) ne "");
vial=scan(vials,i);
output;
i+1;
end;
run;
proc print data=want;
run;
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.