Thank You
If you want to make the macro more flexible add parameters. You can include logic to add a default value.
You can have SAS add the default value for you if you make the parameters non-positional.
%macro patient_obs(dsn=&syslast);
....
from &dsn
....
%mend ;
Or you can add your own logic.
%macro patient_obs(dsnt);
%if 0=%length(&dsn) %then %let dsn=&syslast;
%if not %sysfunc(exist(&dsn)) %then %do;
%put &=dsn not found.;
%end;
....
from &dsn
....
%mend ;
in this code :- what is INTO:npatients trimmed nobs trimmed for ? i dont know what trimmed means in this case
%macro patient_obs() ; %global nobs npatients ; proc sql noprint; select count(enrolid) format=32. , count(N) format=32. into :npatients trimmed , :nobs trimmed from &syslast. ; quit ; %put Dataset &syslast. has &nobs. observations and &npatients. patients ; %mend patient_obs;
Apparently the new SAS 9.4 documentation is defective.
Look at the SAs 9.3 documentation instead.
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