[R-SIG-Mac] [R] Sweave, lty = 3 line incorect in pdf output

[Prof Brian Ripley]

Note that pdf does not 'display' anything: it writes a file.  From 
?pdf

      If you see problems with PDF output, do remember that the problem
      is much more likely to be in your viewer than in R.  Try another
      viewer if possible. ...

So which viewers are you using?

I see no reason why pdf() should produce different output on your Mac 
from anyone else's build of R, and indeed I just ran this on a Mac (R 
2.10.1, Snow Leopard) and viewed it in Preview and Acroread 9.3.0 with 
no issue. And I transferred the file to Linux and viewed it on several 
PDF viewers there.

One possibility is that this is an issue in Preview only on 10.5.8 
(aka darwin9.8.0), or it might depend on the screen resolution or just 
about anything else specific to your machine.


On Thu, 11 Feb 2010, Ken Knoblauch wrote:

> Achim.
>
> Indeed, you are right.  That is where the problem is.
> Thanks for helping localize it a bit further.
> So, I should cc this to the r-sig-mac list.
>
> For the r-sig-mac list, here is the original post on the r-help
>
> https://www.stat.math.ethz.ch/pipermail/r-help/2010-February/227832.html
>
> The pdf() command (at least on my Mac :( )  appears to have
> a problem in displaying dotted lines (lty = 3).
> Short example,
>
> pdf(file = "test.pdf", height = 6, width = 6)
>
> x <- 1:10
> plot(x, type = "l", lty = 3, lwd = 3)
> lines(x, 0.5 * x, type = "l")
>
> dev.off()
>
> Hopefully, this is not yet another instance of R-Mac-FAQ 12.10
> but something more easily treated.
>
>
> R version 2.10.1 Patched (2010-02-01 r51089)
> i386-apple-darwin9.8.0
>
> locale:
> [1] en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods
> [7] base
>
>
> loaded via a namespace (and not attached):
> [1] tools_2.10.1
>
> R.app GUI 1.32-dev (5548 Leopard build 32-bit),
>
> Thank you.
>
> Ken
>
> Quoting Achim Zeileis <Achim.Zeileis at uibk.ac.at>:
>
>> Ken,
>> 
>> an idea off-list: Have you tried
>>
>>  pdf(file = "test.pdf", height = 6, width = 6)
>>  ...
>>  dev.off()
>> 
>> with your code? This is essentially what Sweave should do internally.
>> If that replicates your problem, it might be a hint that something with
>> pdf() is not working on your machine (rather than Sweave()).
>> Z
>
>
>
> -- 
> Ken Knoblauch
> Inserm U846
> Stem-cell and Brain Research Institute
> Department of Integrative Neurosciences
> 18 avenue du Doyen Lépine
> 69500 Bron
> France
> tel: +33 (0)4 72 91 34 77
> fax: +33 (0)4 72 91 34 61
> portable: +33 (0)6 84 10 64 10
> http://www.sbri.fr/members/kenneth-knoblauch.html

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595