Dear All, I have some problem in R which I'm explaining using an example: x<-(120,235,172,95,175,200,233,142) i want to remove the elements which are lesser than 100 and as a result i want two vectors y<-(containing elements <100) z<-(remaining elements) Moreover if I wish to use two different programs for vectors y and z. which command shall I use(will IF-ELSE work ?) Thanks and regards, GS
try the following:
x <- c(120, 235, 172, 95, 175, 200, 233, 142)
y <- x[x < 100]
z <- x[x >= 100]
x
y
z
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://www.med.kuleuven.be/biostat/
http://www.student.kuleuven.be/~m0390867/dimitris.htm
----- Original Message -----
From: "gynmeerut" <gynmeerut at indiatimes.com>
To: "R-Stat Help" <R-help at stat.math.ethz.ch>
Sent: Wednesday, January 04, 2006 10:22 AM
Subject: [R] removal of an element from a vector
>
> Dear All,
> I have some problem in R which I'm explaining using an example:
> x<-(120,235,172,95,175,200,233,142)
> i want to remove the elements which are lesser than 100 and as a
> result i want two vectors
>
> y<-(containing elements <100)
> z<-(remaining elements)
>
>
> Moreover if I wish to use two different programs for vectors y and
> z.
> which command shall I use(will IF-ELSE work ?)
>
>
>
> Thanks and regards,
>
> GS
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
> http://www.R-project.org/posting-guide.html
>
Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm
Gynmeerut asks...> Dear All, > I have some problem in R which I'm explaining using an example: > x<-(120,235,172,95,175,200,233,142) > i want to remove the elements which are lesser than 100 and as aresult i> want two vectors > > y<-(containing elements <100) > z<-(remaining elements)x<-c(120,235,172,95,175,200,233,142) y <- x[which(x < 100)] z <- x[which(x >= 100)]> Moreover if I wish to use two different programs for vectors y and z. > which command shall I use(will IF-ELSE work ?)This part of the question I do not quite understand. Now that you have y and z, you can do whatever you like with them. But R certainly does have conditional control statements (if/else) as described in An Introduction to R. -Eric> > > > Thanks and regards, > > GS > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting- > guide.htmlThis email message, including any attachments, is for the so...{{dropped}}
idx <- x < 100 x[idx] x[!idx] On 1/4/06, gynmeerut <gynmeerut at indiatimes.com> wrote:> > Dear All, > I have some problem in R which I'm explaining using an example: > x<-(120,235,172,95,175,200,233,142) > i want to remove the elements which are lesser than 100 and as a result i want two vectors > > y<-(containing elements <100) > z<-(remaining elements) > > > Moreover if I wish to use two different programs for vectors y and z. > which command shall I use(will IF-ELSE work ?) > > > > Thanks and regards, > > GS > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html >
Hi GS, You could simply do the following y <- x[<100] z <- x[x>=100] That's one of the wonderful things about R. Vitor --- gynmeerut <gynmeerut at indiatimes.com> wrote:> > Dear All, > I have some problem in R which I'm explaining > using an example: > x<-(120,235,172,95,175,200,233,142) > i want to remove the elements which are lesser than > 100 and as a result i want two vectors > > y<-(containing elements <100) > z<-(remaining elements) > > > Moreover if I wish to use two different programs for > vectors y and z. > which command shall I use(will IF-ELSE work ?) > > > > Thanks and regards, > > GS > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html >Vitor Chagas Actuary Portugal