Hi,
I have a cancer data set and I need to create an X variable (observation count). What's the codings used in this case.
Thanks
SAS has an automatic variable that can be used as an observation counter. This assumes you want a row counter. If you want to count observations by groups or some other method you need to provide more details, preferably sample input and output.
Data want;
Set sashelp.class;
X = _n_;
Run;
Proc print data=want label;
Run;
SAS has an automatic variable that can be used as an observation counter. This assumes you want a row counter. If you want to count observations by groups or some other method you need to provide more details, preferably sample input and output.
Data want;
Set sashelp.class;
X = _n_;
Run;
Proc print data=want label;
Run;
Thank you
Its always a good idea to post test data (in the form of a datastep), and what the output should look like. We can only work with what you post here. Do you mean you want an equivalent to the SAS automatic variable _n_ or a total observations?
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