Answer / hsong001

Use %eval to do simple calculation for macro variables.
e.g.,
data _null_;
%let a = 1;
%let b = %eval(&a+1);
%put a=&a b=&b;
run;

Answer / ravi

%let=1;

Can you calculate the mean, median and mode of the following data set using data step logic? Don't use any function or procedure. data a; input age @@; datalines; 22 32 32 32 43 23 24 56 45 54 28 29 27 26 25 28 30 20 18 37 36 47 46 56 19 20 ; run; I have calculated the mean which i have posted in the answer section.

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