BookmarkSubscribeRSS Feed
🔒 This topic is solved and locked. Need further help from the community? Please sign in and ask a new question.
desireatem
Pyrite | Level 9

Hello ,

I want to create data "B" from data "A". That is , I want to keep only data with at least two time points;

 

Data a,
Input id timepoint;
Cards;
001     1
001     2
001     3
002    1
003    1
003    2
004    1
005    1
;
 
Run;

 

 

 Data "B" is created from data "A". id 002 , 004 and 005 are dropped because they are just one time points.

 

 

Data B;
Input id timepoint;
Cards;
 
001     1
001     2
001     3
 
003    1
003    2
;
run;

 

 

1 ACCEPTED SOLUTION

Accepted Solutions
Reeza
Super User

You can use the NOUNIQUEKEY option on PROC SORT.

 

proc sort
     data = sashelp.adomsg
          out = duplicates
          uniqueout = singles
          nouniquekey;
     by msgid;
run;

View solution in original post

4 REPLIES 4
novinosrin
Tourmaline | Level 20

proc sql;

create table b as

select *

from a

group by id

having count(id)>1;

quit;

desireatem
Pyrite | Level 9

Thanks

Reeza
Super User

You can use the NOUNIQUEKEY option on PROC SORT.

 

proc sort
     data = sashelp.adomsg
          out = duplicates
          uniqueout = singles
          nouniquekey;
     by msgid;
run;
Jagadishkatam
Amethyst | Level 16

With datastep as well

 


data a2;
do until(last.id);
set a;
by id timepoint;
if first.id then count=1;
else count+1;
end;
do until(last.id);
set a;
by id timepoint;
if count>1 then output ;
end;
run;

 
Thanks,
Jag

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!

What is Bayesian Analysis?

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.

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
  • 2924 views
  • 2 likes
  • 4 in conversation