Hello,
I am running some commands in batch on a server that I SSH into; some of
the commands call jpeg(). If I continue to stay signed on (with my
xwindows working on my machine) then the jpeg() command works (with a
single caveat, below). If I leave it and sign off (with a nohup command
in front of my BATCH) then jpeg gives me an error like this:
Error in X11(paste("jpeg::", quality, ":", filename, sep =
""), width, :
unable to start device JPEG
In addition: Warning message:
could not open JPEG file xyz.jpeg
I don't have this problem with pdf(); but the images I want to draw are
really massive in terms of the number of points/images so they take
forever to open in adobe (as well as being HUGE) so I'd like them in
jpeg. Can I get around this somehow? I saw other people posted similar
problems, but saw no solutions.
R-2.6.0, GNU/Linux
Thanks,
Elizabeth
My caveat from above about the jpeg working as long as I'm signed on:
one time I got the mysterious error:
>
jpeg("~/batch5Effect/ProbPbsets_summaryHeatmaps%03d.jpeg",height=1200,width=800)
Error in jpeg("~/batch5Effect/ProbPbsets_summaryHeatmaps%03d.jpeg",
height = 1200, :
X11 fatal IO error: please save work and shut down R
Even though it had just correctly done this same basic command a few
lines back. I redid it (without changing anything that I was aware of)
and it worked fine. So I don't think it's related.
Hi. I think the devices provided in 'Cairo' package solves your problem. [ Alternatively you can use the bitmap() device which utilizes Ghostscript to generate bitmap images. In the 'R.utils' package there are wrappers png2() and jpeg2() calling bitmap() but that imitates the png() and jpeg() arguments. However, I have found that Cairo is better, faster and more generic than going via Ghostscript. ] Also, you probably don't want to use JPEG to generate your graphs but PNG. The former is destructive and introduces funny-looking patterns around lines and text etc. Cheers /Henrik On Thu, Feb 21, 2008 at 1:00 PM, Elizabeth Purdom <epurdom at stat.berkeley.edu> wrote:> Hello, > > I am running some commands in batch on a server that I SSH into; some of > the commands call jpeg(). If I continue to stay signed on (with my > xwindows working on my machine) then the jpeg() command works (with a > single caveat, below). If I leave it and sign off (with a nohup command > in front of my BATCH) then jpeg gives me an error like this: > Error in X11(paste("jpeg::", quality, ":", filename, sep = ""), width, : > unable to start device JPEG > In addition: Warning message: > could not open JPEG file xyz.jpeg > > I don't have this problem with pdf(); but the images I want to draw are > really massive in terms of the number of points/images so they take > forever to open in adobe (as well as being HUGE) so I'd like them in > jpeg. Can I get around this somehow? I saw other people posted similar > problems, but saw no solutions. > > R-2.6.0, GNU/Linux > > Thanks, > Elizabeth > > My caveat from above about the jpeg working as long as I'm signed on: > one time I got the mysterious error: > > > jpeg("~/batch5Effect/ProbPbsets_summaryHeatmaps%03d.jpeg",height=1200,width=800) > Error in jpeg("~/batch5Effect/ProbPbsets_summaryHeatmaps%03d.jpeg", > height = 1200, : > X11 fatal IO error: please save work and shut down R > > Even though it had just correctly done this same basic command a few > lines back. I redid it (without changing anything that I was aware of) > and it worked fine. So I don't think it's related. > > ______________________________________________ > 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 > and provide commented, minimal, self-contained, reproducible code. >
On Thu, 21 Feb 2008, Elizabeth Purdom wrote:> Hello, > > I am running some commands in batch on a server that I SSH into; some of > the commands call jpeg(). If I continue to stay signed on (with my > xwindows working on my machine) then the jpeg() command works (with a > single caveat, below). If I leave it and sign off (with a nohup command > in front of my BATCH) then jpeg gives me an error like this: > Error in X11(paste("jpeg::", quality, ":", filename, sep = ""), width, : > unable to start device JPEG > In addition: Warning message: > could not open JPEG file xyz.jpeg > > I don't have this problem with pdf(); but the images I want to draw are > really massive in terms of the number of points/images so they take > forever to open in adobe (as well as being HUGE) so I'd like them in > jpeg. Can I get around this somehow? I saw other people posted similar > problems, but saw no solutions.Well, this is documented and there are solutions even on the jpeg() help page and mamy more in the archives. Basically 1) Use a Xvfb X server 2) Use bitmap() 3) Use an alternative such as GDD or Cairo (but for me those do a poor job on symbol fonts). The good news is that R 2.7.0 will have a better solution, producing JPEGs without using X11.> > R-2.6.0, GNU/Linux > > Thanks, > Elizabeth > > My caveat from above about the jpeg working as long as I'm signed on: > one time I got the mysterious error: > > > jpeg("~/batch5Effect/ProbPbsets_summaryHeatmaps%03d.jpeg",height=1200,width=800) > Error in jpeg("~/batch5Effect/ProbPbsets_summaryHeatmaps%03d.jpeg", > height = 1200, : > X11 fatal IO error: please save work and shut down R > > Even though it had just correctly done this same basic command a few > lines back. I redid it (without changing anything that I was aware of) > and it worked fine. So I don't think it's related.That's an X11 problem, not an R problem.> ______________________________________________ > 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 > and provide commented, minimal, self-contained, reproducible code. >-- 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