[R] Rcmdr X11 protocol error message

John Fox jfox at mcmaster.ca
Mon Sep 6 05:53:02 CEST 2004

Dear Michael, 

> -----Original Message-----
> From: Michael Bibo [mailto:mbibo at qldnet.com.au] 
> Sent: Saturday, September 04, 2004 9:59 AM
> To: John Fox
> Cc: 'Peter Dalgaard'; r-help at stat.math.ethz.ch; 'Dirk Eddelbuettel'
> Subject: Re: [R] Rcmdr X11 protocol error message

 . . .

> I have another reliable observation with the new version of 
> Rcmdr, which I offer only because it might provide a clue as 
> to what's going on:
> If you generate a scatterplot for two numerical variables 
> grouped by a factor, the plot is drawn, but the dialogue box 
> remains on screen, and is unresponsive.  When the graphics 
> device is closed, you get an error
> message: 'Error: No graphics device active'.
> If you then try to generate the same scatterplot ungrouped 
> (which previously worked fine) you receive a message; 
> 'Warning: display list redraw incomplete'.  This only occurs 
> the first time you try to draw the ungrouped scatterplot.
> Hope it helps.

This works fine for me, under both Windows and Quantian. Is it possible that
you forgot to left-click to position the legend for the scatterplot by
groups (at is indicated at the bottom of the Groups dialog box)?

I hope that this helps,

> Peter,
> Any hints as to how to generate that trace of the execution 
> you mentioned?
> Michael
> michael_bibo at health.qld.gov.au

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