Date:         Fri, 30 May 2008 21:08:36 -0700
Reply-To:     RolandRB <rolandberry@HOTMAIL.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         RolandRB <rolandberry@HOTMAIL.COM>
Organization: http://groups.google.com
Subject:      Re: %IF usage to compare Strings
Comments: To: sas-l@uga.edu
Content-Type: text/plain; charset=ISO-8859-1

On May 31, 2:14 am, ab_sha...@YAHOO.COM.SG (abshakes) wrote:
> Hi Guys,
>   Question1
>   I am having problems with comparing Strings using %if in a macro setting.
>   For example : I know that CommandString = Slope ;
>   But I want the Value of the macro variable : i.e.
>   CommandString = Slope ; Level ;
>   whenever CommandString = Slope ;
>   I use the following code:-
>   %if &CommandString=slope %str(;) %Then %CommandString=level%Str(;)slope%str(;);
>   But unfortunately, the above code returns False even though its True.

"slope" is not the same as "Slope". Look at the following.

8    %macro test;
9    %let CommandString=Slope %str(;);
10   %put >>> &CommandString;
11   %if &CommandString=Slope %str(;) %then %put They are the same;
12   %mend test;
13   %test
>>> Slope ;
They are the same


>   Question2
>   Is there a way to break out of a loop in Macro? Inother words if a loop in the macro returns an error, it keeps repeatingt till the program crashes....in other words is there a way I can break oout of the loop dynamicaly and resume it with a new dataset?
>
>   Your help is highly appreciated.
>   Many Thanks !!

Depending on the situation, just %goto out of it and jump to a label.