[R] Font problem --- SOLVED.

[Rolf Turner]

> On Mon, Oct 3, 2016 at 7:55 AM, 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

Turns out that all I had to do was:

sudo apt-get install xfonts-100dpi
sudo-apt-get install xfonts-75dpi

I'd had to do something like this on my old Fedora-running laptop. 
Finally figured out the apt-get command analogous to the old yum 
command.  (Different package name(s); took me a while to find/figure out 
what the appropriate names are.  I'm *slow*!!!)

Thanks to everyone who tried to help me overcome my stupidity!

cheers,

Rolf Turner

-- 
Technical Editor ANZJS
Department of Statistics
University of Auckland
Phone: +64-9-373-7599 ext. 88276