Data step sequence number

[BrahmanandaRao]

Hi

Everyone

how to create sequence number in data step using if  and _n_ 

[PeterClemmensen]

What do you mean by a sequence number?

[BrahmanandaRao]

proc sql;
select *,monotonic() as sno from sashelp.class;

quit;

same output with _n_ in datastep

[Kurt_Bremser]

It is extremely simple, you can do that on your own. Show us what you tried if it did not work.

[andreas_lds]

and why  do you want to use an if-statement?

[Kurt_Bremser]

You only need _N_.

If it is more complicated than that, post input data (in usable form!) and the expected output.