[R] Replacing Period in String

Peter Langfelder peter.langfelder at gmail.com
Mon Mar 21 06:18:57 CET 2011


I think it is as simple as adding the argument fixed=TRUE to the function call.
txt = "this. is. a. test."
gsub(".", "", txt, fixed = TRUE)

result

[1] "this is a test"

HTH,

Peter

On Sun, Mar 20, 2011 at 9:49 PM, Sparks, John James <jspark4 at uic.edu> wrote:
> Dear R Users,
>
> I am working with gsub for the first time.  I am trying to remove some
> characters from a string.  I have hit the problem where the period is the
> shorthand for 'everything' in the R language when what I want to remove is
> the actual periods.  In the example below, I simply want to remove the
> periods as I have removed the comma, but instead the complete string is
> wiped out.  I would appreciate it if someone could let me know how I
> communicate that I want to remove the period verbatim to R.
>
> Many thanks.
> --John Sparks
>
>> txt="This is a test. However, it is only a test."
>> txt2<-gsub(",","",txt)
>> txt2
> [1] "This is a test. However it is only a test."
>> txt3<-gsub(".","",txt)
>> txt3
> [1] ""
>>
>
> ______________________________________________
> 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.
>



More information about the R-help mailing list