[R] readJPEG function cannot open jpeg files

Suzen, Mehmet suzen at acm.org
Mon Jan 14 20:25:11 CET 2013

On 14 January 2013 18:56, Prof Brian Ripley <ripley at stats.ox.ac.uk> wrote:
> On 14/01/2013 16:26, Suzen, Mehmet wrote:
>> Similar issue with URLs:
> Not a similar issue at all: a URL is not a file.  That most functions in R
> itself open connections including URLs does not mean that contributed
> packages do.  The package help is quite specific about its requirements.
>   source: Either name of the file to read from or a raw vector
>           representing the JPEG file content.
> Which suggests to you how you can do this, apart from download.file, of
> course.  Something like
> readJPEG(readBin(yesWeCan, "raw", 1e6))

 Dear Prof. Ripley,

Thank you for the correction. I was thinking in the lines of
'Everything is a file' concept.


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