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Date:         Fri, 20 Feb 2004 11:19:47 -0500
Reply-To:     "Fehd, Ronald J. (PHPPO)" <rjf2@CDC.GOV>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         "Fehd, Ronald J. (PHPPO)" <rjf2@CDC.GOV>
Subject:      Re: a question of macro
Comments: cc: miranda <mixiao@UCLA.EDU>
Content-Type: text/plain; charset="us-ascii"

> From: miranda [mailto:mixiao@UCLA.EDU] > option MPRINT MLOGIC SYMBOLGEN; > %macro Channame(name,node); > data _null_; > > if length("&name.")=7 then call > symput('stname',trim(left(compress(substr("&name.",1,4))))||"&node."); > else if length("&name.")=6 then call > symput('stname',trim(left(compress(substr("&name.",1,3))))||"&node."); > put "&stname."; > run; > %mend Channame; > %Channame(ARSW003,5); > %Channame(ASI003,10); > %Channame(AEF003,10); > > I hope the macro variable &stname. can be resolved to > ARSW5, ASI10 and AEF10. there is something wrong with my > codes, Please let me know what's your suggestion.

It is not necessary to run a data step to assign a value to a macro variable.

%macro Channame(name,node,StName = .); %If %length("&name.")=6 %then %Let StName = %substr(&Name.,1,3)&Node.; %else %If %length("&name.")=7 %then %Let StName = %substr(&Name.,1,4)&Node.; %put &stname.; %mend Channame;

I wonder if this works: %macro Channame(name,node,StName = .,Column=1); %If %length("&name.")=6 %then %Let Column=3; %else %If %length("&name.")=7 %then %Let Column=4; %Let StName = %substr(&Name.,1,&Column.)&Node.; %put &stname.; %mend Channame;

what's your purpose in doing this? StName is %local to the macro.

Ron Fehd the macro maven CDC Atlanta GA USA RJF2@cdc.gov --> cheerful provider of UNTESTED SAS code from the Clue?Gee!Wrx <--


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