[R] Vector Manipulation

[Petr Pikal]

Hi

or slightly quicker

y<-(x != "N")*1

HTH
Petr

On 16 Jun 2006 at 22:57, Dimitrios Rizopoulos wrote:

Date sent:      	Fri, 16 Jun 2006 22:57:48 +0200
From:           	Dimitrios Rizopoulos <Dimitris.Rizopoulos at med.kuleuven.be>
To:             	"Davis, Jacob B. " <JBDavis at txfb-ins.com>
Copies to:      	r-help at stat.math.ethz.ch
Subject:        	Re: [R] Vector Manipulation

> try the following:
> 
> x <- c("B", "F", "N", "Y")
> ################
> y <- numeric(length(x))
> y[x != "N"] <- 1
> y
> 
> 
> I hope it helps.
> 
> Best,
> Dimitris
> 
> ---- 
> Dimitris Rizopoulos
> Ph.D. Student
> Biostatistical Centre
> School of Public Health
> Catholic University of Leuven
> 
> Address: Kapucijnenvoer 35, Leuven, Belgium
> Tel: +32/(0)16/336899
> Fax: +32/(0)16/337015
> Web: http://med.kuleuven.be/biostat/
>      http://www.student.kuleuven.be/~m0390867/dimitris.htm
> 
> 
> Quoting "Davis, Jacob B. " <JBDavis at txfb-ins.com>:
> 
> > I have a vector that has 1,974 elements and each element is one of
> > the following (B, F, N, Y).  How do I recreate that vector accept in
> > the place of N put 0 and in the place of B, F or Y put a 1?
> > 
> >  
> > 
> > Thanks,
> > 
> > Jacob
> > 
> >  
> > 
> >  
> > 
> > 
> > 	[[alternative HTML version deleted]]
> > 
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Petr Pikal
petr.pikal at precheza.cz