[R] Font problem.

[Jeff Newmiller]

There is R-sig-debian (Ubuntu is a derivative of Debian), but to be honest, this seems more like a question for askubuntu.com.
-- 
Sent from my phone. Please excuse my brevity.

On October 2, 2016 1:55:59 PM PDT, Rolf Turner <r.turner at auckland.ac.nz> wrote:
>
>Dunno exactly whom I should ask about this problem, but I thought I'd 
>start with good old r-help.
>
>I have recently acquired a new laptop, and have installed Ubuntu 16.04 
>on it.  Still having some teething problems.
>
>If I do
>
>plot(1:10,ylab=expression(italic(J(r)))
>
>I get the error:
>
>Error in title(...) :
>   X11 font -*-courier-%s-%s-*-*-%d-*-*-*-*-*-*-*, face 5 at size 15 
>could not be loaded
>
>So it would seem that I am missing a font.  Fonts have always been a 
>complete mystery to me.  Can anyone suggest how I might rectify this 
>deficiency in the fonts on my system?  If so, *please* be as explicit
>as 
>you can in your instructions; I am all at sea here.
>
>cheers,
>
>Rolf Turner
>
>P. S.  I have also just noticed that if I do:
>
>plot(1:10,ylab=expression(alpha))
>
>I get an "a" as the y-axis label, rather than the Greek letter alpha.
>
>Likewise if I do plot(1:10,ylab=expression(Sigma)) I get a capital "S" 
>rather than an upper case Greek Sigma symbol.  No error thrown, but.
>
>Any ideas as to how to fix this problem?
>
>For what it's worth, here is my sessionInfo():
>
>R version 3.3.1 (2016-06-21)
>Platform: x86_64-pc-linux-gnu (64-bit)
>Running under: Ubuntu 16.04.1 LTS
>
>locale:
>  [1] LC_CTYPE=en_NZ.UTF-8       LC_NUMERIC=C
>  [3] LC_TIME=en_NZ.UTF-8        LC_COLLATE=en_NZ.UTF-8
>  [5] LC_MONETARY=en_NZ.UTF-8    LC_MESSAGES=en_NZ.UTF-8
>  [7] LC_PAPER=en_NZ.UTF-8       LC_NAME=C
>  [9] LC_ADDRESS=C               LC_TELEPHONE=C
>[11] LC_MEASUREMENT=en_NZ.UTF-8 LC_IDENTIFICATION=C
>
>attached base packages:
>[1] stats     graphics  grDevices utils     datasets  methods   base
>
>other attached packages:
>[1] misc_0.0-16
>
>loaded via a namespace (and not attached):
>  [1] deldir_0.1-13       Matrix_1.2-3        mgcv_1.8-12
>  [4] abind_1.4-3         spatstat_1.46-1.036 rpart_4.1-10
>  [7] nlme_3.1-128        grid_3.3.1          polyclip_1.5-0
>[10] lattice_0.20-33     goftest_1.0-3       tensor_1.5
>
>R. T.