Thanks Charles, but ... (below)


On Sat, May 11, 2013 at 6:28 PM, Charles Plessy <charles-r-nospam@plessy.org
> wrote:

> Le Sat, May 11, 2013 at 04:25:14PM -0500, Paul Johnson a écrit :
>
> >
>
> Dear Paul,
>
> the packages in the squeeze-cran3 folder are built for the Debian "Squeeze"
> (6.0) distribution.  The liblzma2 package exists in Squeeze, but not in
> Wheezy
> (Debian 7.0, the distribution you used for your fresh install).  Downgrades
> are not supported, as exemplified by your problem.
>
> Debian Wheezy was released just one week ago, so I guess it is only a
> matter of
> time before a "wheezy-cran" folder will be provided.
>
> Best regards,
>
>
I agree to your interpretation of the packaging problem. I can post the R
packages for Wheezy on my website if anybody wants them.

Now, back to the "no glyph" problem. Does

> demo(plotmath)

work for you on Debian 7?

Here's a re-producible example that generates bad on-screen output for me.

plot(0~0, type = "n")
text(.4, expression(group(lceil,x, rceil)), cex=0.5)

The glyphs for the left and right braces look like "dominoes".

I found a thread from 2010 about a similar problem, but that case blamed
the Wine fonts. Now I suspect some other bad symbol font has found its way
to the front of my path.

https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=14355

That thread points out that using the Xlib version of the X11 device SOLVES
the problem, but at the price of slightly lower quality of output. If I
want to use the default Cairo device, apparently I have to fiddle something.

I am experimenting with the debugging and fontconfig adjustments that might
be used to avoid the trouble.

To the non-full-time-font administrator like me, this is a bit overwhelming
because there are so many different types of fonts.

pj



> --
> Charles Plessy
>


-- 
Paul E. Johnson
Professor, Political Science      Assoc. Director
1541 Lilac Lane, Room 504      Center for Research Methods
University of Kansas                 University of Kansas
http://pj.freefaculty.org               http://quant.ku.edu

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