Similar issue with URLs:
> yesWeCan <-
> "http://upload.wikimedia.org/wikipedia/commons/9/9d/Barack_Obama.jpg";
> url(yesWeCan)
description
"http://upload.wikimedia.org/wikipedia/commons/9/9d/Barack_Obama.jpg";
class
"url"
mode
"r"
text
"text"
opened
"closed"
can read
"yes"
can write
"no"
> readJPEG(yesWeCan)
Error in readJPEG(yesWeCan) :
unable to open
http://upload.wikimedia.org/wikipedia/commons/9/9d/Barack_Obama.jpg
On 14 January 2013 14:57, Yi Yuan <lamban...@gmail.com> wrote:
> I installed jpeg package and tried to use
>
> kim<-readJPEG("kim.jpeg") to read in a jpeg file, but R gave me an error:
> Error in readJPEG("kim.jpeg") : unable to open kim.jpeg
>
> I already put "kim.jpeg" in Rstudio's default working directory: "E:\home
> work\Rstudio". So I don't think it's a problem caused by omitting the file's
> path. But I tried with the full path version just in case and still got the
> "unable to open" error:
>
> kim<-readJPEG("E:\\ home work\\Rstudio\\kim.jpeg")
> Error in readJPEG("E:\\ home work\\Rstudio\\kim.jpeg") :
> unable to open E:\ home work\Rstudio\kim.jpeg
>
> So now I really don't know what is wrong.
>
> [[alternative HTML version deleted]]
>
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> 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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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
![http://upload.wikimedia.org/wikipedia/commons/9/9d/Barack_Obama.jpg"](http://upload.wikimedia.org/wikipedia/commons/9/9d/Barack_Obama.jpg"){kind=link}
