[R] unable to start device JPEG in linux

[Bachas]

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?




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
>> 
>> 
>> ______________________________________________
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>> 
> 
> 

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