[R] readJPEG function cannot open jpeg files

[Suzen, Mehmet]

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 <lambandme at 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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