Hi I need help with calculating the sum of observation by ID
My data look like this;
ID drug day_supply
1 A 30
1 A 30
1 B 10
2 B 15
2 B 15
2 B 15
I want to create a variable that sums up the day_supply
ID drug Total_day_supply
1 A 60
1 B 10
2 B 45
Thanks in advance!
Alternatively, you could use proc summary:
data have; input ID drug $ day_supply; cards; 1 A 30 1 A 30 1 B 10 2 B 15 2 B 15 2 B 15 ; proc summary data=have; var day_supply; by id drug; output out=want (drop=_:) sum=total_day_supply; run;
Art, CEO, AnalystFinder.com
something like this
proc sql;
create table newtable as
select id, drug, sum(day_supply) as total_day_supply
from yourtable
group by id, drug;
quit;
Alternatively, you could use proc summary:
data have; input ID drug $ day_supply; cards; 1 A 30 1 A 30 1 B 10 2 B 15 2 B 15 2 B 15 ; proc summary data=have; var day_supply; by id drug; output out=want (drop=_:) sum=total_day_supply; run;
Art, CEO, AnalystFinder.com
Thanks you all for providing the answers.
Don't miss out on SAS Innovate - Register now for the FREE Livestream!
Can't make it to Vegas? No problem! Watch our general sessions LIVE or on-demand starting April 17th. Hear from SAS execs, best-selling author Adam Grant, Hot Ones host Sean Evans, top tech journalist Kara Swisher, AI expert Cassie Kozyrkov, and the mind-blowing dance crew iLuminate! Plus, get access to over 20 breakout sessions.
Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
Find more tutorials on the SAS Users YouTube channel.