Hello,
Can someone tell what I am doing wrong with the below macro? Long story short, I have a input dataset(i'm using cars dataset for illustration purposes) from which I want to extract rows from a starting position and end position. The start and end values could change every run hence I am using macro to the pass the start and end positions.
I am getting the below error message:
ERROR: A character operand was found in the %EVAL function or %IF condition where a numeric operand is required. The condition was: 10 + 20 + 1
ERROR: Invalid number conversion on OBS.
ERROR: A character operand was found in the %EVAL function or %IF condition where a numeric operand is required. The condition was: 10 + 20 + 55
Thank you!
Code:
%let a = 10;
%let b = 20;
%let c = 55;
%Macro test(fst,lst);
Data temp;
Set sashelp.cars(firstobs=%eval(&fst. + 1) obs=%eval(&fst. + &lst.));
Run;
%Mend;
%test(%str(&a. + &b.),&c.)
;
You appear to be missing a space before the second dataset option name.
(firstobs=%eval(&fst. + 1) obs=%eval(&fst. + &lst.))
You are quoting unnecessarily
try:
%test((&a. + &b.),&c.)
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