Create rank from a flag

[Haritha1]

Hi Everyone,

Could you please help me to code the below logic.

I have a flag variable in my data set and I want to create a Rank variable in the following way.

PS: I'm using SAS 9.4.

flag	Rank
0	1
1	2
1	2
1	2
0	3
1	4
1	4
0	5
1	6
1	6
1	6

Thanks a lot in Advance.

[Kurt_Bremser · Accepted solution]

data want;
set have;
by flag notsorted;
retain rank 0;
if first.flag then rank + 1;
run;

[Haritha1]

This is helpful.

Thanks..)