Date:         Mon, 26 Apr 2004 06:52:32 GMT
Reply-To:     "(2B) || !(2B) Arin Chaudhuri" <spam@SPAM.NET>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         "(2B) || !(2B) Arin Chaudhuri" <spam@SPAM.NET>
Organization: Road Runner - NC
Subject:      Re: error in a macro
Content-Type: text/plain; charset=us-ascii; format=flowed

Mayukh Dass wrote:
> Hi,
> WARNING: Apparent symbolic reference N not resolved.
> NOTE: Line generated by the macro variable "N".
> 1    &desc&
>      -
>      22
The error is in this line : tothr=tothr+input(&&desc&n, 1.);
n is a datastep variable not a macro variable.

You can wrap the whole thing in a macro.
[warning! code untested]
%macro m;
data two;
  infile "C:\Documents and Settings\Mayukh Dass\My
Documents\iFolder\6360\&filename" missover;
  input name$ (desc1-desc&vars_no)($);
  %do n=3 %to 16 %by 3;
    tothr=tothr+input(&&desc&n, 1.);
    %end;
  run;
%mend;
%m;

Or use an array instead of a macro
i.e.,
array desc{*} desc1-desc&vars_no ...

and then you can write a do loop like,

do n=3 to 16 by 3;
tothr=tothr+input(desc{n},1.);
run;