Uwe, I had to smile at your comments - the code works on my 512Mb laptop....
-----Original Message----- From: Uwe Ligges [mailto:[EMAIL PROTECTED] Sent: Mon 12/20/2004 2:23 PM To: michael watson (IAH-C) Cc: [EMAIL PROTECTED] Subject: Re: [R] Memory problem with jpeg() and wide jpegs michael watson (IAH-C) wrote: > Hi > > I have been creating very, very long jpeg images for the last two weeks > using jpeg(). All of a sudden, and I mean that, it's stopped working - > I've not changed a thing! The error message I get is: > > >>jpeg("out.jpg",width=50000,height=480, quality=100) > > Error in devga(paste("jpeg:", quality, ":", filename, sep = ""), width, > : > unable to start device devga > In addition: Warning message: > Unable to allocate bitmap > > I have plenty of disk space in the place I want to create the jpeg, and > if I reduce it from "width=50000" to "width=5000", then it works no > problem, which suggests it is a memory problem. If I close R and > re-open R the problem does not go away. And as I said above, I have > been using this code for weeks with no problem, then I change nothing, > and start getting this error message. I don't believe it has worked. Such a huge one does not work for me even on a rather big machine. If it had worked: On the same platform, OS, R version? I think you have to contribute a patch in order to get such a huge jpeg. Uwe Ligges > I'm running R 2.0.1 on Windows XP. I'm going to restart Windows and see > if that helps, but if re-starting windows does help, is there an > explanation as to where all the memory R used to be able to get at > disappeared to in the current session? > > Cheers > Mick > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html ______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
