if my data looks like this
cust_id flag
101 N
101 Y
102 N
102 Y
i need my output as below
Please help me on this asap.
Thanks in advance.
data want;
set have;
by cust_id;
retain flag1; drop flag1;
if first.cust_id or flag = 'Y' then flag_1 = flag;
else flag = flag1;
run;
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