Hi All,
I have this dataset:
Exposure Name
101 Sandra
101
101 Tiffany
101 Abel
101
101
I Want :
Expsoure Name
101 Sandra
101 Sandra
101 Tiffany
101 Abel
101 Abel
101 Abel
How can I carry forward character value to subsequent missing rows until it reaches a non-missing cell.
I tried using lag but it doesn't work if more than 1 row has missing value.
Thanks!
data want;
set have;
retain _name;
if name > ''
then _name = name;
else name = _name;
drop _name;
run;
data have;
infile datalines truncover;
input (Exposure Name) ($);
cards;
101 Sandra
101
101 Tiffany
101 Abel
101
101
;
data want;
set have;
by exposure;
length n $50;
retain n ;
if first.exposure then call missing(n);
if not missing(name) then n=name;
else name=n;
drop n;
run;
data want;
set have;
retain _name;
if name > ''
then _name = name;
else name = _name;
drop _name;
run;
data have;
infile datalines truncover;
input (Exposure Name) ($);
cards;
101 Sandra
101
101 Tiffany
101 Abel
101
101
;
data want;
update have(obs=0) have;
by exposure;
output;
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.