Re: [R] delete "-character from strings in matrix
You will need to escape special characters. Here is an example :
my.string <- "Here is a quote \" in a string"
my.string
[1] "Here is a quote \" in a string"
gsub("\"", "", my.string)
[1] "Here is a quote in a string"
See help(regexp) for more details.
Regards, Adai
On Sun, 2005-06-12 at 14:10 +0200, Werner Wernersen wrote:
> Thanks for the reply, Andy!
>
> My problem was that I could not get rid of a double
> quote character within the
> string. I don't know what I have done before, but now
> it works...?!?!
> Sorry for bothering you.
>
> Best,
>Werner
>
>
> Liaw, Andy wrote:
> > Please define "does not work". Here's what I get:
> >
> >
> >>m <- matrix(paste(letters[1:4], "does not work."),
> 2, 2)
> >>m
> >
> > [,1] [,2]
> > [1,] "a does not work." "c does not work."
> > [2,] "b does not work." "d does not work."
> >
> >>gsub("does not work.", "", m)
> >
> > [1] "a " "b " "c " "d "
> >
> >>structure(gsub("does not work.", "", m), dim=dim(m))
> >
> > [,1] [,2]
> > [1,] "a " "c "
> > [2,] "b " "d "
> >
> > R-2.1.0 on WinXPPro.
> >
> > Andy
> >
> >
> >>From: Werner Wernersen
> >>
> >>Hi!
> >>
> >>I have strings where occasionally some "-chars
> occur.
> >>How can I delete these chars?
> >>
> >>I tried it with gsub but using "" as replace does
> not
> >>work.
> >>
> >>Thanks a lot for any hint!
> >>Regards,
> >> Werner
> >>
> >>__
> >>R-help@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
> >>
> >>
> >>
> >
> >
> >
> >
> >
> --
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Re: [R] delete "-character from strings in matrix
Thanks for the reply, Andy!
My problem was that I could not get rid of a double
quote character within the
string. I don't know what I have done before, but now
it works...?!?!
Sorry for bothering you.
Best,
Werner
Liaw, Andy wrote:
> Please define "does not work". Here's what I get:
>
>
>>m <- matrix(paste(letters[1:4], "does not work."),
2, 2)
>>m
>
> [,1] [,2]
> [1,] "a does not work." "c does not work."
> [2,] "b does not work." "d does not work."
>
>>gsub("does not work.", "", m)
>
> [1] "a " "b " "c " "d "
>
>>structure(gsub("does not work.", "", m), dim=dim(m))
>
> [,1] [,2]
> [1,] "a " "c "
> [2,] "b " "d "
>
> R-2.1.0 on WinXPPro.
>
> Andy
>
>
>>From: Werner Wernersen
>>
>>Hi!
>>
>>I have strings where occasionally some "-chars
occur.
>>How can I delete these chars?
>>
>>I tried it with gsub but using "" as replace does
not
>>work.
>>
>>Thanks a lot for any hint!
>>Regards,
>> Werner
>>
>>__
>>R-help@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
>>
>>
>>
>
>
>
>
>
--
> Notice: This e-mail message, together with any
attachments, contains information of Merck & Co., Inc.
(One Merck Drive, Whitehouse Station, New Jersey, USA
08889), and/or its affiliates (which may be known
outside the United States as Merck Frosst, Merck Sharp
& Dohme or MSD and in Japan, as Banyu) that may be
confidential, proprietary copyrighted and/or legally
privileged. It is intended solely for the use of the
individual or entity named on this message. If you
are not the intended recipient, and have received this
message in error, please notify us immediately by
reply e-mail and then delete it from your system.
>
--
>
>
__
R-help@stat.math.ethz.ch mailing list
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PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] delete "-character from strings in matrix
Please define "does not work". Here's what I get:
> m <- matrix(paste(letters[1:4], "does not work."), 2, 2)
> m
[,1] [,2]
[1,] "a does not work." "c does not work."
[2,] "b does not work." "d does not work."
> gsub("does not work.", "", m)
[1] "a " "b " "c " "d "
> structure(gsub("does not work.", "", m), dim=dim(m))
[,1] [,2]
[1,] "a " "c "
[2,] "b " "d "
R-2.1.0 on WinXPPro.
Andy
> From: Werner Wernersen
>
> Hi!
>
> I have strings where occasionally some "-chars occur.
> How can I delete these chars?
>
> I tried it with gsub but using "" as replace does not
> work.
>
> Thanks a lot for any hint!
> Regards,
>Werner
>
> __
> R-help@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
>
>
>
__
R-help@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
[R] delete "-character from strings in matrix
Hi! I have strings where occasionally some "-chars occur. How can I delete these chars? I tried it with gsub but using "" as replace does not work. Thanks a lot for any hint! Regards, Werner __ R-help@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
