Data: | ||
ID | Summer | Price |
2516 | A | 269 |
1678 | A | 240 |
20982 | B | 125 |
2516 | B | 452 |
20982 | A | 315 |
2516 | D | 804 |
20982 | D | 804 |
20982 | A | 200 |
WANT: | ||
ID | NEW_STRING | |
2516 | ABD | |
1678 | A | |
20982 | BADA | |
proc sql;
create index id on have(id);
quit;
data want;
do until(last.id);
set have;
by id;
length want $50;
want=cats(want,summer);
end;
keep id want;
run;
Hi @BaileyY Very straight forward
data have;
input ID Summer $ Price;
cards;
2516 A 269
1678 A 240
20982 B 125
2516 B 452
20982 A 315
2516 D 804
20982 D 804
20982 A 200
;
data _null_ ;
if _n_=1 then do;
dcl hash H () ;
h.definekey ("id") ;
h.definedata ("id","want") ;
h.definedone () ;
end;
set have end=z;
if h.find() ne 0 then want=Summer;
else want=cats(want,summer);
h.replace();
if z;
h.output(dataset:'want');
run;
proc sql;
create index id on have(id);
quit;
data want;
do until(last.id);
set have;
by id;
length want $50;
want=cats(want,summer);
end;
keep id want;
run;
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