Re: [R] Upgraded FC4 to FC5 - unable to start device X11 in R

From: Patrick Connolly <p_connolly_at_ihug.co.nz>
Date: Sat, 16 Jun 2007 16:09:17 +1200

On Fri, 15-Jun-2007 at 01:50PM -0700, Li-Jung Liang wrote:

|> Hi,
|>
|> I upgraded my system from FC4 to FC5. So now I have R version 2.5.0
|> (2007-04-23).
|> But I ran into a problem with starting device X11 (message below).
|>
|> > X11()
|> can't find X11 font
|> Error in X11(display, width, height, pointsize, if (is.null(gamma)) 1
|> else gamma, :
|> unable to start device X11
|>
|> Any idea?

Check what search() gives you. Make sure package:grDevices is on that list.

I ran into that problem myself. I never figured out how come it used to be there, but suddenly ceased to be. The problem didn't appear until R-2.5.0. In the USER-VISIBLE CHANGES under CHANGES IN R VERSION 2.0.0,
I see this:

    o	Package 'graphics' has been split into 'grDevices' (the graphics
	devices shared between base and grid graphics) and 'graphics'
	(base graphics).  Each of the 'graphics' and 'grid' packages
	load 'grDevices' when they are attached.  Note that
	ps.options() has been moved to grDevices and user hooks may
	need to be updated.

My suspicion is that grDevices did not have to be specifically loaded if graphics was one of your default packages loaded at startup. Since few others seem to have had the same experience, I'd hesitate to call it a bug. I've got round the problem by adding grDevices to the list in my ~/.Rprofile file.

Others might have a better explanation, of course.

HTH

-- 
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   ___    Patrick Connolly   
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Received on Sat 16 Jun 2007 - 04:19:11 GMT

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