I have this code
data have;
infile datalines dlm=',' dsd;
input ID $ var1 $ var2 $ var3 $;
datalines;
ID 00, ,Y,
ID 00, , ,
ID 00,Y, ,
ID 01,Y, ,Y
ID 01, , ,
;
data want;
do until (last.id);
update have(obs=0) have;
by ID;
end;
do until (last.id);
set have (keep=id); by id;
output;
end;
run;
I got this code here:
https://communities.sas.com/t5/SAS-Programming/assign-the-same-value-by-group/td-p/717919
Instead of grouping by one variable I want to group by two or more variables. How can I adapt the code to this dataset?
data have2;
infile datalines dlm=',' dsd;
input ID_A $ ID_B $ var1 $ var2 $ var3 $;
datalines;
ID 00, ID 10, ,Y,
ID 00, ID 10, , ,
ID 00, ID 20,Y, ,
ID 00, ID 20, , ,
ID 01, ID 10,Y, ,Y
ID 01, ID 10, , ,
ID 01, ID 20, ,Y,
ID 01, ID 20, , ,
;
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