
Hi -

Are there any known bugs involving the use of the R editor on mac?   
I'm teaching a course on R programming; some of my students use R  
2.5.1 on OSX and receive strange messages in red type when executing  
code from the editor.  For example, one just emailed me to note that  
- as she attempted to plot two columns of a dataframe "x" (by  
highlighting the command below and pressing CMD + ENTER), the  
following message appeared in her R console window:

> plot(x$body, x$brain)

Strange message in red:

> 2007-09-26 12:52:36.576 R[793] *** Assertion failure in - 
> [RDeviceView lockFocus], AppKit.subproj/NSView.m:3248
> 2007-09-26 12:52:36.576 R[793] *** REngine.runREPL: caught ObjC  
> exception in the main loop!
> *** Please report the following error on r-sig-mac@r-project.org  
> along with the full description of how to reproduce it:
> *** reason: lockFocus sent to a view whose window is deferred and  
> does not yet have a corresponding platform window
> *** name: NSInternalInconsistencyException, info: (null)
> *** Version: R 2.5.1 (42083) R.app R 2.5.1 GUI 1.20 (4535)/i386
> Consider saving your work soon in case this problem leads to a full  
> crash.

I have never seen anything like this when I run R on Windows.

Thanks,
~Dan Rabosky


Dan Rabosky
Department of Ecology and Evolutionary Biology &
Fuller Evolutionary Biology Program
Cornell Lab of Ornithology
Cornell University
Ithaca, NY 14853-2701
DLR32@cornell.edu
ph 607 592 4636
fax 607 255 8088





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