I have a dataset with multiple observations per person. I want to combine the ones with the same id into one row but I want to keep descending values. How can I do this?
Current Data
ID RANDFL COMPFL TIMEFL
001 Y Y N
001 N N Y
001 N N Y
002 N Y Y
002 N N N
002 N N N
003 Y N N
003 Y Y N
003 Y N N
Wanted Data
ID RANDFL COMPFL TIMEFL
001 Y Y Y
002 N Y Y
003 Y Y N
You can use SQL and the fact that you can aggregate on character columns.
If you want Y to override N, then use the Max function.
proc sql;
create table want as
select ID, max(randfl) as randfl, max(compfl) as compfl, max(timefl) as timefl
from have
group by ID
order by ID;
quit;
@nharuka wrote:
I have a dataset with multiple observations per person. I want to combine the ones with the same id into one row but I want to keep descending values. How can I do this?
Current Data
ID RANDFL COMPFL TIMEFL 001 Y Y N 001 N N Y 001 N N Y 002 N Y Y 002 N N N 002 N N N 003 Y N N 003 Y Y N 003 Y N N
Wanted Data
ID RANDFL COMPFL TIMEFL 001 Y Y Y 002 N Y Y 003 Y Y N
You can use SQL and the fact that you can aggregate on character columns.
If you want Y to override N, then use the Max function.
proc sql;
create table want as
select ID, max(randfl) as randfl, max(compfl) as compfl, max(timefl) as timefl
from have
group by ID
order by ID;
quit;
@nharuka wrote:
I have a dataset with multiple observations per person. I want to combine the ones with the same id into one row but I want to keep descending values. How can I do this?
Current Data
ID RANDFL COMPFL TIMEFL 001 Y Y N 001 N N Y 001 N N Y 002 N Y Y 002 N N N 002 N N N 003 Y N N 003 Y Y N 003 Y N N
Wanted Data
ID RANDFL COMPFL TIMEFL 001 Y Y Y 002 N Y Y 003 Y Y N
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