[R] no graphics windows
dwinsemius at comcast.net
Wed Dec 8 04:48:52 CET 2010
On Dec 7, 2010, at 9:07 PM, Carolyn Fitzsimmons wrote:
> I've downloaded R and started going through Appendix A in the R-
> intro manual.
> When I use the plox command I expect to see a graphics window, but
> there is
> none. I've searched the help archives and found that it might go to
> a ps file?
> Can someone help me get the graphics window working?
Graphics device vary quite a bit between the three major OS-es that
people are using. On a Mac (using the R-GUI) it is sometimes necessary
to type quartz() at the command line; Other times it is also necessary
to type plot.new(). The screen devices are different than the file
plotting devices. Quite honestly I am not able to give you a clear
explanation when plot.new() is needed and when quartz() is more
appropriate. I suspect that plot.new() does not change the device but
rather initializes an open device, and that quartz() is generally what
I should be using when in your situation. If I don't get the action I
need with one, I try the other and so far I have not gotten into
trouble. You could be looking at:
Right now I had no plot window open. I typed quartz() at the command
line (of the GUI) and a quartz window opens. If I close that window
and type plot(1,1), a new window opens. with a single point. If I
close that window and type dev.cur() I get:
I do know that you should remember to always complete a file device
output session with dev.off() or you end up with a useless file.
> Kind Regards, Carolyn
> [[alternative HTML version deleted]]
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
David Winsemius, MD
West Hartford, CT
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