[Rd] Re: (PR#7005) X11 , plot(...expression(...)): missing parentheses

maechler at stat.math.ethz.ch maechler at stat.math.ethz.ch
Tue Jun 22 15:00:02 CEST 2004

>>>>> "humbertc" == humbertc  <humbertc at univ-mlv.fr>
>>>>>     on Tue, 22 Jun 2004 13:16:58 +0200 (CEST) writes:

    humbertc> Full_Name: Cyril Humbert
    humbertc> Version: 1.9.1
    humbertc> OS: Debian GNU/Linux (i386)
    humbertc> Submission from: (NULL) (

    humbertc> Hello,
    humbertc> For the X11 graphic device, parentheses are not displayed in 
    humbertc> labels for constructions like:

    humbertc> X11()
    humbertc> plot(0,0, ylab=expression(f(x)))

    humbertc> In this case, ylabel shows : 'yx' and not 'y(x)' as expected.
    humbertc> The same problem appears also with 'xlab' and 'sub' but not
    humbertc> with 'main':

    humbertc> X11()
    humbertc> plot(0,0, xlab=expression(x(t)), ylab=expression(y(t)), 
    humbertc>      main=expression(m(t)), sub=expression(s(t)))

I assume this could be some kind of font (server) problem with
your X11 / Xserver setup.

For me (also Linux, R 1.9.1) all the parentheses display fine.
and I'm pretty sure they do for most people or we would have
heard about it earlier.
Martin Maechler

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