Date:         Thu, 4 Aug 2005 22:56:38 -0400
Reply-To:     "Howard Schreier <hs AT dc-sug DOT org>" <nospam@HOWLES.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         "Howard Schreier <hs AT dc-sug DOT org>" <nospam@HOWLES.COM>
Subject:      Re: a question about macro variable

There is a reference to macro variable &A, but it has not been created. The
fact that there is a data step variable named A is essentially irrelevant.

By the way, if you expected A to have a value of 100, there are two other
mistakes:

1. omitting the ampersand needed to reference macro variable &NUM1.

2. using single quotes (should be double quotes if A is to be character; no
quotes at all if A is to be numeric).

On Thu, 4 Aug 2005 16:32:57 -0700, Kai Zhang <chen4sas@YAHOO.COM> wrote:

>%let num1=100;
>
>data k;
>        a='num1';
>        b=&a;
>
>I was told "a" can not be resolved. I'll appreciate if
>someone could explain it. Thank you!
>
>
>
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