I'd like to create a var "count" for the total number of repated rows in combination of multiple variables as shown in data "want". I know how to accomplish this using proc freq and merging output data back to original file. I wonder if i can do it in data step, as shown how my program had failed to do so below. I'm using SAS 9.4.
Could you please help with direct correction on my code below?
data have;
input id cat dog ant;
datalines;
1 1 2 3
1 1 2 3
1 1 2 3
1 1 2 3
2 2 6 0
3 3 4 5
4 4 6 7
;
run;
data want;
input id cat dog ant count;
datalines;
1 1 2 3 4
1 1 2 3 4
1 1 2 3 4
1 1 2 3 4
2 2 6 0 1
3 3 4 5 1
4 4 6 7 1
;
run;
PROC SORT DATA=have;
BY id;
RUN;
DATA HAVE1; SET HAVE;
RETAIN COUNT;
BY ID;
IF FIRST.ID THEN VISIT = 1; ELSE VISIT+1;
IF LAST.ID THEN COUNT=VISIT;
RUN;
PROC SORT DATA=have; BY id; RUN; DATA HAVE1; do until(last.id); SET HAVE; BY ID; if first.id then count=1; else count+1; end; do until(last.id); SET HAVE; BY ID; output; end; RUN;
Art, CEO, AnalystFinder.com
PROC SORT DATA=have; BY id; RUN; DATA HAVE1; do until(last.id); SET HAVE; BY ID; if first.id then count=1; else count+1; end; do until(last.id); SET HAVE; BY ID; output; end; RUN;
Art, CEO, AnalystFinder.com
Are you ready for the spotlight? We're accepting content ideas for SAS Innovate 2025 to be held May 6-9 in Orlando, FL. The call is open until September 16. Read more here about why you should contribute and what is in it for you!
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.
Select SAS Training centers are offering in-person courses. View upcoming courses for: