BookmarkSubscribeRSS Feed
🔒 This topic is solved and locked. Need further help from the community? Please sign in and ask a new question.
lillymaginta
Lapis Lazuli | Level 10
id   drug 
1    a
1   a
1   a
1  b
1  c
1 c
2 a
2 b
2 b
2 b
2 c
2 c

I have the following data. I want to create an output that provide me with the total number of id who have 2 or more of a specific drug. For example for id1: count the id one for a, none for b, and one for c

here is the output I am looking for

drug  total ids

a    1

b  1

c  2 

 

 

1 ACCEPTED SOLUTION

Accepted Solutions
lakshmi_74
Quartz | Level 8
proc sql;
select drug, count(*) from
(select id,drug,count(*) as total from have group by id,drug having calculated total ge 2)
group by drug;
quit;

View solution in original post

4 REPLIES 4
RW9
Diamond | Level 26 RW9
Diamond | Level 26

Post test data in the form of a datastep!

 

Just a rough guess:

proc sql;
  create table WANT as
  select ID,
           DRUG
           count(*) as RES
  from   HAVE
  group by ID,DRUG
  having RES >= 2;
quit;
Astounding
PROC Star

If you know how to read PROC FREQ output, two PROC FREQs should do the job nicely.

 

proc freq data=have;

tables drug * id / noprint out=counts;

run;

 

proc freq data=counts;

tables drug;

where count > 1;

run;

 

The output data set from the first PROC FREQ counts the number of observations for each DRUG / ID combination.

 

The report from the second PROC FREQ will give you a list of the drugs, and the FREQUENCY column is the number of IDs.

lakshmi_74
Quartz | Level 8
proc sql;
select drug, count(*) from
(select id,drug,count(*) as total from have group by id,drug having calculated total ge 2)
group by drug;
quit;
lillymaginta
Lapis Lazuli | Level 10

Thank you all! 

sas-innovate-2024.png

Join us for SAS Innovate April 16-19 at the Aria in Las Vegas. Bring the team and save big with our group pricing for a limited time only.

Pre-conference courses and tutorials are filling up fast and are always a sellout. Register today to reserve your seat.

 

Register now!

How to Concatenate Values

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.

Click image to register for webinarClick image to register for webinar

Classroom Training Available!

Select SAS Training centers are offering in-person courses. View upcoming courses for:

View all other training opportunities.

Discussion stats
  • 4 replies
  • 2669 views
  • 5 likes
  • 4 in conversation