[R] unable to start device JPEG in linux

[Prof Brian Ripley]

On Tue, 12 Aug 2008, Bachas wrote:

>
> I have half a solution:
> bitmap(file="filename.jpg",type="jpeg");  works to generate a jpeg file.
> However, I want my plots to be stored in single jpeg files and I can't get
> this to work:
> bitmap(file="Rplot%03d.jpg",onefile=FALSE,type="jpeg");
> it overwrites my Rplot001.jpg file.
>
> Any one additional comments on how to generate multiple jpeg files?

Does anyone ever read the help file?  ?bitmap does not mention that form 
of file name, and you cannot do it with bitmap().

Also, you quote a message about R 2.1.1!  The posting guide asks you to 
update before posting, so we are entitled assume that you have 2.7.1 for 
which the jpeg() device ought to work without an X11 server available.  I 
suspect you don't have a current version of R.

> Bachas wrote:
>>
>> I have the same problem. I am using R on our bioinformatics server. From
>> what I have read jpeg() needs to use a widows graphics device like X11 to
>> be able to generate a jpeg file.
>> I am also very curious to see if anyone knows a solution, now I need to
>> use pdf() of ps() which is more time consuming and uses more diskspace.
>>
>>> jpeg()
>> Error in X11(paste("jpeg::", quality, ":", filename, sep = ""), width,  :
>> unable to start device JPEG
>> In addition: Warning message:
>> In jpeg() : unable to open connection to X11 display ''
>>> capabilities()
>>     jpeg      png    tcltk      X11 http/ftp  sockets   libxml     fifo
>>    FALSE    FALSE     TRUE    FALSE     TRUE     TRUE     TRUE     TRUE
>>   cledit    iconv      NLS  profmem
>>     TRUE     TRUE     TRUE    FALSE
>>
>>
>> Haiyan Pan wrote:
>>>
>>> r-help，
>>>  When I want to use jpeg() in R-2.1.1 which is installed in linux
>>> platform to generate a jpeg file, the error occurs as following:
>>>
>>> > jpeg()
>>> Error in X11(paste("jpeg::", quality, ":", filename, sep = ""), width,  :
>>>         unable to start device JPEG
>>> In addition: Warning message:
>>> unable to open connection to X11 display ''
>>>> capabilities()
>>>     jpeg      png    tcltk      X11 http/ftp  sockets   libxml     fifo
>>>    FALSE    FALSE     TRUE    FALSE     TRUE     TRUE     TRUE     TRUE
>>>   cledit  IEEE754    iconv
>>>     TRUE     TRUE     TRUE
>>>
>>> X11 device is existed in this machine, would you suggest me how to
>>> resolve this problem.
>>> Many thanks for your help and it will be greatly appreciated!
>>>
>>>
>>>
>>> = = = = = = = = = = = = = = = = = = = =
>>>
>>>  Haiyan Pan
>>>  hypan at scbit.org
>>>
>>>  Tel: 021-64363311-123
>>>  Shanghai Center for Bioinformatics Technology
>>>  Floor 12th,100# QinZhou Road
>>>  Shanghai,China,200235
>>>
>>>
>>> ______________________________________________
>>> R-help at stat.math.ethz.ch mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide!
>>> http://www.R-project.org/posting-guide.html
>>>
>>
>>
>
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>
> ______________________________________________
> R-help at 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
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>

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595