I have ned_1 which is a binary variable if
boardid year ned_1
1 2000 0
1 2000 1
1 2001 1
1 2001 1
1 2002 0
1 2002 0
2 2000 0
2 2000 0
2 2001 1
3 2002 1
3 2002 1
i want to arrive at
boardid year ned_1
1 2000 1
1 2001 2
1 2002 0
2 2000 0
2 2001 1
3 2002 2
how may i do this? thank you in advance!
proc sql;
select boardid, year, sum(ned_1=1) as ned_1 from have
group by boardid, year
;
quit;
Not tested.
Haikuo
I would use proc summary:
proc summary data=have;
var ned_1;
by boardid year;
output out=want (drop=_:) sum=;
run;
It helps to provide the logic, so we don't have to make assumptions.
Assuming ned_1 in your want table is the sum of the ned_1 in the first table.
Look into proc means to summarize your information.
proc sql;
select boardid, year, sum(ned_1=1) as ned_1 from have
group by boardid, year
;
quit;
Not tested.
Haikuo
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 the difference between classical and Bayesian statistical approaches and see a few PROC examples to perform Bayesian analysis in this video.
Find more tutorials on the SAS Users YouTube channel.