Bonjour,
Je souhaite partager cette solution avec vous:
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data test;
input @1 id $3.
@5 var $5.;
datalines;
001 acbf
002 abxde
003 12cce
004 abc e
; run;
data test1(drop=i ver diff_car
rename=(diff_car1=diff_car));
retain id var ref diff_car;
set test;
length diff_car1 $10.;
retain diff_car1;
by id;
if first.id then do;
diff_car1=""; |
...