Hi, I am working with some textual data and i want to combine textual rows by ID.
Data have:
ID | alpha |
1 | a |
1 | b |
1 | c |
2 | a |
2 | c |
3 | a |
3 | b |
4 | a |
Data Want:
1 | a,b,c |
2 | a,c |
3 | a,b |
4 | a |
Thanks,
data have;
input ID alpha $;
cards;
1 a
1 b
1 c
2 a
2 c
3 a
3 b
4 a
;
data want;
do until(last.id);
set have;
by id;
length want $100;
want=catx(',',want,alpha);
end;
drop alpha;
run;
data have;
input ID alpha $;
cards;
1 a
1 b
1 c
2 a
2 c
3 a
3 b
4 a
;
data want;
do until(last.id);
set have;
by id;
length want $100;
want=catx(',',want,alpha);
end;
drop alpha;
run;
data have;
input ID alpha $;
cards;
1 a
1 b
1 c
2 a
2 c
3 a
3 b
4 a
4 a
;
data want;
do until(last.id);
set have;
by id;
length want $100;
want=catx(',',want,alpha);
end;
drop alpha;
run;
Just a minor addition: What if i had the same alpha for the same id. For example id#4 has a and a twice. I just want it to be displaced as 'a' instead of 'a,a'
Hi @rajd1 Please try the modified and let me know-
data have;
input ID alpha $;
cards;
1 a
1 b
1 c
2 a
2 c
3 a
3 b
4 a
4 a
;
data want;
do until(last.id);
set have;
by id;
length want $100;
if ^index(want,strip(alpha)) then want=catx(',',want,alpha);
end;
drop alpha;
run;
The following code will help you.
data want(Keep = id newvar); length newvar $200.; set have; by ID; retain newvar; if first.ID then newvar=alpha; else newvar=catx(',',newvar,alpha); if last.ID; run;
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