Dear Peter,
Thanks for the suggestion -- it's a bit better for the example I provided than
my approach of using textConnection() of putting the lines in a file.
I'd still be interested in whether I've missed something like a text-chunk
option that would allow the R Markdown document to behave like a script
executed at the console. For example, your approach doesn't work for the
application where I encountered the problem, which is in a function that calls
scan() and that passes the file argument to it, but doesn't use the text
argument.
Best,
John
On Sat, 25 Oct 2014 17:11:14 +0200
peter dalgaard <pda...@gmail.com> wrote:
>
> > On 25 Oct 2014, at 16:43 , John Fox <j...@mcmaster.ca> wrote:
> >
> > Dear JJ and list members,
> >
> > I wonder whether it's possible to get scan() to read in-line data in an R
> > Markdown document. The following code, for example, works (of course) when
> > entered in the R console but fails in an R block in an R Markdown document
> > (using an up-to-date version of RStudio):
> >
> > ```{r}
> > x <- scan()
> > 1 2 3
> > 4 5 6
> >
> > x
> > ````
> >
> > I'm aware of a couple of work-arounds, such as putting the data in a file
> > or a character string (as below), but am interested in whether it's
> > possible to get this to work directly.
> >
> > ```{r}
> > text <- "
> > 1 2 3
> > 4 5 6
> > "
> > (x <- scan(file=textConnection(text)))
> > ````
> >
> > Any help would be appreciated.
>
> This generally isn't easy. You can't source() a file like that either, it
> only works on std.input, and even there it is tricky it you have tabs in the
> (pasted) data. Notice that
>
> scan(text="
> 1 2 3
> 4 5 6
> ")
>
> was designed for the purpose of reading inline data.
>
>
> --
> Peter Dalgaard, Professor,
> Center for Statistics, Copenhagen Business School
> Solbjerg Plads 3, 2000 Frederiksberg, Denmark
> Phone: (+45)38153501
> Email: pd....@cbs.dk Priv: pda...@gmail.com
>
>
______________________________________________
R-help@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.
