Hi as far as result of operation is logical vector you can change it to numeric by simple multyplying by 1 or adding 0. It is treated as 0 when FALSE and 1 when TRUE.
Regards Petr From: Tasnuva Tabassum [mailto:t.tasn...@gmail.com] Sent: Wednesday, February 27, 2013 10:16 AM To: PIKAL Petr; Berend Hasselman Subject: Re: [R] Merging value labels into indicator variable. Yes, I tried them all. They worked well. I think when I have a little complex case where NAM has values 1,2,3,22,88,101 and I need to make an indicator taking value 1 for NAM=22 or NAM=88 or NAM=101; I may use Var001<-ifelse(NAM %in% c(22,88,101),1,0). Or, I can use Var001<-1*NAM %in% c(22,88,101). On Wed, Feb 27, 2013 at 1:20 PM, PIKAL Petr <petr.pi...@precheza.cz<mailto:petr.pi...@precheza.cz>> wrote: Hi can not resist Var001 <- (NAM>=7 & NAM<=9)*1 Regards Petr > -----Original Message----- > From: r-help-boun...@r-project.org<mailto:r-help-boun...@r-project.org> > [mailto:r-help-bounces@r-<mailto:r-help-bounces@r-> > project.org<http://project.org>] On Behalf Of Tasnuva Tabassum > Sent: Tuesday, February 26, 2013 7:03 PM > To: Berend Hasselman > Cc: R help > Subject: Re: [R] Merging value labels into indicator variable. > > Thanx all, I found my answer. I prefer Peter's second solution. > > > On Tue, Feb 26, 2013 at 11:59 PM, Berend Hasselman > <b...@xs4all.nl<mailto:b...@xs4all.nl>> > wrote: > > > > > On 26-02-2013, at 18:45, Tasnuva Tabassum > > <t.tasn...@gmail.com<mailto:t.tasn...@gmail.com>> > wrote: > > > > > I have a vaiable named NAM having value : 1,2,3,4,5,6,7,8,9. I > want > > > to make an indicator variable that will take value 1 if NAM=7 or > > > NAM=8 or NAM=9. How can I do that? > > > I usually do: Var001<- ifelse(NAM==7,1,0) for the simplest case. > > > > > > How about > > > > Var001<- ifelse(NAM>=7 & NAM<=9,1,0) > > > > > > Berend > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org<mailto:R-help@r-project.org> mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting- > guide.html > and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
