Re: [R] spliting strings ...

From: Dimitris Rizopoulos <dimitris.rizopoulos_at_med.kuleuven.be>
Date: Thu, 13 Dec 2007 14:57:16 +0100

one way is the following:

str <- c('aaa bbb', 'cc', 'd eee aa', 'mmm o n') sapply(strsplit(str, " "), "[", 1)

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


>
> Hi everyone,
>
> I have a vector of strings, each string made up by different number
> of words. I want to get a new vector which has only the first word
> of each string in the first vector. I came up with this:
>
> str <- c('aaa bbb', 'cc', 'd eee aa', 'mmm o n')
> str1 <- rep(1, length(str))
> for (i in 1:length(str)) {
> str1[i] <- strsplit(str, " ")[[i]][1]
> }
> str1
> 'aaa' 'cc' 'd' 'mmm'
>
> Now, is there any way to do this simpler?
>
> Thanks,
>
> Monica
>
> _________________________________________________________________
> Get the power of Windows + Web with the new Windows Live.
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help_at_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.
>

Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm



R-help_at_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. Received on Thu 13 Dec 2007 - 14:03:01 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Thu 13 Dec 2007 - 14:30:19 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.