Hi, I have a problem to run the following programs, the log screen telling something wrong with the part of "sum(of s1-s(i))", that is what it said--- ERROR: Missing numeric suffix on a numbered variable list (s1-s). ERROR: Undeclared array referenced: NAME. ERROR: Variable NAME has not been declared as an array. ERROR 22-322: Syntax error, expecting one of the following: a name, ','.

Could you please tell me what is wrong?

My purpose is to find the fisrt "1" in the array--s(i) (the value of this array is 1 or 0), and give the number of that item in the array to the variable "numb". It would be great if you could give me some other suggestions or idea to do that.

Thank you very much.

proc sort data=temp; by cntyid; run; data temp2; set temp; by cntyid; array s(12) screen1-screen12; if s1=1 then numb=1; do i=2 to 12; if s(i)=1 and sum(of s1-s(i))=1 then numb=i; end; run;