[R] Replace double slashes with single backslash

[jim holtman]

Why do you want to replace '\\' with '\' in the file names?  They are
actually single '\' in the character string, but are printing out as '\\'.
see example below:

    > x <- 'a\\b'
    > x
    [1] "a\\b"
    > nchar(x)
    [1] 3

Jim Holtman
*Data Munger Guru*


*What is the problem that you are trying to solve?Tell me what you want to
do, not how you want to do it.*


On Mon, Dec 28, 2020 at 1:20 PM Bert Gunter <bgunter.4567 using gmail.com> wrote:

> "\" is an escape in R. See ?Quotes for details.
>
> Bert Gunter
>
> "The trouble with having an open mind is that people keep coming along and
> sticking things into it."
> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
>
>
> On Mon, Dec 28, 2020 at 12:56 PM Anbu A <rquestion2020 using gmail.com> wrote:
>
> > Hi All,
> > I am able to replace "r" with "x" for the word "Users" just for a test
> run.
> > *Code: newlist %>% mutate(.,new_col=str_replace(fpath,"r","x"))  *- this
> > works fine
> > But when I try to replace "\\" with "\".
> > *newlist %>% mutate(.,new_col=str_replace(fpath,"\\","\")) *, I get a
> > prompt ">" to complete the code. Not working. There is something on
> > backslashes to be "masked".
> > Any help would be appreciated.
> >
> >                        fpath                         new_col
> > 1 C:\\Users\\Anbu\\Desktop\\sas\\ C:\\Usexs\\Anbu\\Desktop\\sas\\
> > 2 C:\\Users\\Anbu\\Desktop\\sas\\ C:\\Usexs\\Anbu\\Desktop\\sas\\
> > 3 C:\\Users\\Anbu\\Desktop\\sas\\ C:\\Usexs\\Anbu\\Desktop\\sas\\
> > 4 C:\\Users\\Anbu\\Desktop\\sas\\ C:\\Usexs\\Anbu\\Desktop\\sas\\
> > 5 C:\\Users\\Anbu\\Desktop\\sas\\ C:\\Usexs\\Anbu\\Desktop\\sas\\
> >
> > Thanks,
> > Anbu.
> >
> >         [[alternative HTML version deleted]]
> >
> > ______________________________________________
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> > http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
>

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