All,
This is the data set I have
Id res
111 YYY
111 XXX
111 NNN
222 YYY
222 NNN
222 XXX
222 PPP
222 XYZ
222 HAB
222 XCV
This is the dataset I am looking for (i.e the res should be missing for the records that are after first XXX)
111
222
Thanks
-Bhargav
Create a flag and use RETAIN to hold it across rows.
Data want;
srt have;
by id;
retain flag;
if first.id then flag=0;
if flag=1 then call missing(res);
if res='XXX' then flag=1;
run;
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