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Date:         Mon, 8 Jan 2007 14:04:25 -0800
Reply-To:     "Mogens A. Krogh" <MKROGH@DSR.KVL.DK>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         "Mogens A. Krogh" <MKROGH@DSR.KVL.DK>
Subject:      Re: Specific variable list within a database
Comments: To:
In-Reply-To:  <>
Content-Type: text/plain; charset="us-ascii"

Dear Fushun, You can try to do something like this. But if large is realy 'large' then it will not work very well.

data WANT (keep=varname); set sashelp.class; if _n_ in (3,4) then sex = ' '; if _n_ = 9 then age = .; array num(*) _numeric_; array cha(*) _character_; do i=1 to dim(cha); IF CHA(i)=' ' THEN do; VARNAME=Vname(CHA(i)); output; end; end; do ii=1 to dim(num); IF num(ii)=. THEN do; VARNAME=Vname(num(ii)); output; end; end; run; proc sort data=want nodupkey; by varname; run;

Regards, Mogens A. Krogh Phd-student, DVM

fushun zhang skrev: > Hi, > > I want to figure out a variable list for those contain all missing value within a large database. Does anyone know how to do this? Any help & suggestion are appreciated. > > Thanks, > > Zhang > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around >

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