%sysfunc
22. May 2007 06:40%sysfunc :
%sysfunc is useful for retrieving information about datasets, changing column attributes and formatting macro variables.One primary difference between calling a function in %SYSFUNC and elsewhere in the SAS System is this last notion of applying a format to the results of a function call.
Example1.
footnote finished: %sysfunc (today(), date9. );
Example2.
%put %sysfunc (PutN(&Salary,dollar12.));
Example3.
%put With a salary of
%sysfunc
(PutN(&Salary,dollar12.));
%put You are %sysfunc(PutN(&salary, income.));
Example4.
If you wanted to find the total number of observations in a dataset and store that number as a macro variable. You might use something like this:
%let dsid= %sysfunc (open(name of the data));%let nvars= %sysfunc (attrn(&dsid,nlobs));
%put &nvars;
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