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nataliavanessa0
Calcite | Level 5

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

 

1 ACCEPTED SOLUTION

Accepted Solutions
Ksharp
Super User
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;

View solution in original post

1 REPLY 1
Ksharp
Super User
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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