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superbug
Quartz | Level 8

I have a large dataset. I want to add an ID variable in the data.  For every 250 rows, I want them to have the same ID. that is, for the first 250 rows, I want ID=1; the next 250 rows, I want ID=2; then then next 250 rows, ID=3; etc. 

What's the efficient SAS code to help me do that?

Thanks! 

1 ACCEPTED SOLUTION

Accepted Solutions
novinosrin
Tourmaline | Level 20
data want;
 set have curobs=n;
 if mod(n,250)=1 then id+1;
run;

View solution in original post

2 REPLIES 2
novinosrin
Tourmaline | Level 20
data want;
 set have curobs=n;
 if mod(n,250)=1 then id+1;
run;
superbug
Quartz | Level 8

@novinosrin 

Thanks much!

You are always so helpful!

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