Hello ,
I am trying to create one variable (type2) from multiple rows per ID using variable type. I want to covert a table like this one:
ID | type |
1 | A |
1 | A |
1 | B |
2 | A |
2 | A |
3 | B |
3 | B |
3 | B |
To:
ID | type2 |
1 | C |
2 | A |
3 | B |
Where type2 is:
If type is always A then type2=A;
If type is always B then type2=B;
If type is a combination of A and B then type2=C;
Thanks
data have; input ID type $; cards; 1 A 1 A 1 B 2 A 2 A 3 B 3 B 3 B ; proc sql; create table want as select id,case when sum(type='A')=count(type) then 'A' when sum(type='B')=count(type) then 'B' when sum(type='A') ne 0 and sum(type='B') ne 0 then 'C' else ' ' end as type2 from have group by id; quit;
data have; input ID type $; cards; 1 A 1 A 1 B 2 A 2 A 3 B 3 B 3 B ; proc sql; create table want as select id,case when sum(type='A')=count(type) then 'A' when sum(type='B')=count(type) then 'B' when sum(type='A') ne 0 and sum(type='B') ne 0 then 'C' else ' ' end as type2 from have group by id; quit;
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