Uwe, I didn't include reproducible code because I don't think it will be
reproduced on somebody else's machine.  Like I said, I can use the png
function with impunity on one machine, but not on the other.  So I am
assuming it is a computer error, and a very weird one at that.  I just
posted it here because I am curious why it would behave in such a way, and
if anybody knows why, I would like to know.  If my problem makes no sense to
you, just ignore it.  I post using html because that is the only way I know
how, that is, I send an email to r-help@r-project.org.  And, I did mention
in my first post that I was running R 2.13.0.  Thanks for taking the time to
respond--  Patrick

On Fri, Apr 22, 2011 at 5:17 AM, Uwe Ligges <ligges@statistik.tu-dortmund.de
> wrote:

>  On 21.04.2011 22:32, Patrick McKann wrote:
>
>> I don't know if anyone is reading this, but I have more information now.
>>  I
>> can run the same script on my other computer over and over, change the
>> height, width and res, and it works every time.  But on the faulty
>> computer,
>> I can open R, open the script, and run it and it works.  I can re-run it
>> any
>> number of times and it works.  However, when I change the height, width,
>> or
>> res settings in the function, I get the error message.  From that point
>> on,
>> even if I change the height, width, or res back to what worked before, it
>> will no longer run and I get the error message.  I can only get it to run
>> again by shutting down the program, re-opening R and the script, and
>> running
>> it again.  This is just bizarre to me and I have no idea why I am having
>> this problem.  Thanks if you are still reading, and I welcome any input.
>> I'm not very technically savvy, but I am running it on Windows XP Pro
>> Version 2002, Service Pack 3.
>>
>
>
>
> The following works for me:
>
> > png("test.png", width=50000, height=50000, res=1000)
> Error in png("test.png", width = 50000, height = 50000, res = 1000) :
>
>  unable to start png() device
> In addition: Warning messages:
> 1: In png("test.png", width = 50000, height = 50000, res = 1000) :
>  Unable to allocate bitmap
> 2: In png("test.png", width = 50000, height = 50000, res = 1000) :
>  opening device failed
> > png("test.png",width=1000, height=1000, res=1200)
> > dev.off()
>
>
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html<http://www.r-project.org/posting-guide.html>and provide commented, minimal, self-contained, reproducible code.
>
> - So where is your reproducible example???
> - Assuming you are running R-2.13.0 (also unstated)???
> - Why do you send html mails???
>
> Uwe Ligges
>
>
>
>
>
>        [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help@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<http://www.r-project.org/posting-guide.html>
>> and provide commented, minimal, self-contained, reproducible code.
>>
>

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