Re: [R] Number of words in a string

From: Gabor Grothendieck <ggrothendieck_at_gmail.com>
Date: Wed, 09 Apr 2008 11:56:05 -0400

See strapply in the gsubfn package and the gsubfn home page at gsubfn.googlecode.com.
Here we extract the words, the last word and all but the last word:

> library(gsubfn)
> strapply(C, "\\w+")
[[1]]
[1] "My" "Dog"

[[2]]
[1] "Its" "really" "good"

[[3]]
[1] "Beautiful"

> sapply(strapply(C, "\\w+"), tail, 1)

[1] "Dog" "good" "Beautiful"
> sapply(strapply(C, "\\w+"), tail, -1)
[[1]]
[1] "Dog"

[[2]]
[1] "really" "good"

[[3]]
character(0)

On Wed, Apr 9, 2008 at 11:44 AM, Shubha Vishwanath Karanth <shubhak_at_ambaresearch.com> wrote:
> Got all the answers using ?strsplit... Is there any way without using string split?... More specifically... How can I just extract the last word in all the strings without using ?strsplit ?
>
> Shubha Karanth | Amba Research
> Ph +91 80 3980 8031 | Mob +91 94 4886 4510
> Bangalore * Colombo * London * New York * San Josť * Singapore * www.ambaresearch.com
>
> -----Original Message-----
> From: r-help-bounces_at_r-project.org [mailto:r-help-bounces_at_r-project.org] On Behalf Of Hans-Joerg Bibiko
> Sent: Wednesday, April 09, 2008 9:10 PM
> To: r-help_at_stat.math.ethz.ch
>
> Subject: Re: [R] Number of words in a string
>
>
> On 9 Apr 2008, at 17:29, Markus Gesmann wrote:
> > Would this:
> >
> > sapply(strsplit(C, " "), length)
> >
> > work for?
>
> or
>
> length(unlist(strsplit(C, " ")))
>
> --Hans
>
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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 Wed 09 Apr 2008 - 16:21:54 GMT

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