Thanks Deepayan,
I'd never have figured that out for myself.
On Sat, 21-Jun-2014 at 08:47PM +0530, Deepayan Sarkar wrote:
|> On Sat, Jun 21, 2014 at 1:00 PM, Patrick Connolly
|> <p_connolly at slingshot.co.nz> wrote:
|> > Hello Deepayan,
|> >
|> > The question below I asked on the Rhelp list. For the first time in
|> > my experience, what Brian Ripley says seems not to be the case. No
|> > one else made any comment, hence this direction to the main Lattice
|> > man.
|> >
|> > It might, indeed, be more of a grid issue which you would understand
|> > better than the rest of us. Please direct me to any documentation
|> > that covers the question. My searches have been unsuccessful.
|>
|> Basically, the settings are taken from
|>
|> > trellis.par.get("fontsize")
|> $text
|> [1] 12
|>
|> $points
|> [1] 8
|>
|> I'll give a more detailed response on r-help.
|>
|> -Deepayan
|>
|> > Thank you.
|> >
|> >
|> > ----- Forwarded message from Patrick Connolly <p_connolly at
slingshot.co.nz> -----
|> >
|> > Date: Thu, 12 Jun 2014 21:01:20 +1200
|> > From: Patrick Connolly <p_connolly at slingshot.co.nz>
|> > To: Prof Brian Ripley <ripley at stats.ox.ac.uk>
|> > Cc: R-help <r-help at r-project.org>
|> > Subject: Re: [R] Trellis devices and pointize
|> > User-Agent: Mutt/1.5.21 (2010-09-15)
|> >
|> > On Mon, 09-Jun-2014 at 08:33AM +0100, Prof Brian Ripley wrote:
|> >
|> > |> The issue here is not trellis.device.
|> > |>
|> > |> You are using lattice plots (without mentioning lattice), which
are
|> > |> based on package 'grid' and so using the grid
sub-system of a
|> > |> device. That sub-system does not use the 'pointsize' of
the device
|> > |> as its initial font size. So you need to use
|> > |>
|> > |> grid::gpar(fontsize = 28)
|> > |>
|> > |> If I call that after opening the device I get what I guess you
expected.
|> >
|> > I don't see it making any difference at all. At one time I
supposed
|> > that some clever inner workings rescaled everything to something more
|> > sensible for a plotting region that size, but that is not the case.
|> >
|> >> trellis.device(device = pdf, file = "Singers.pdf",
height = 160/25.4,
|> > + width = 160/25.4)
|> >
|> >> grid::get.gpar()$fontsize
|> > [1] 12
|> >> grid::gpar(fontsize = 8)
|> > $fontsize
|> > [1] 8
|> >
|> >> grid::get.gpar()$fontsize
|> > [1] 12
|> >>
|> >
|> > Evidently I missed something somewhere. Grid graphics is sometimes a
|> > bit too subtle for me. I know gpar() doesn't work exactly
analogously
|> > to the way par() works. I can't find any examples in Paul's
"R
|> > Graphics" book or Deepayan's "Lattice" book (but
that might just be
|> > lack of searching skills).
|> >
|> > Then I tried putting it in the call to print.trellis:
|> >
|> > print(pik, plot.args = grid::gpar(fontsize = 8))
|> >
|> > and in the bwplot() call similar to the way I'd done in panel
functions
|> > with an argument called gp but I get no error message or any
|> > difference in my resulting plot.
|> >
|> > I know I can fiddle with trellis.par.get() and trellis.par.set() but
|> > that's a bit long-winded when it's so simple to do in base
graphics.
|> >
|> > TA
|> >
|> > |>
|> > |>
|> > |> On 09/06/2014 07:54, Patrick Connolly wrote:
|> > |> >How is the pointsize set in trellis.devices?
|> > |> >
|> > |> >>From my reading of the trellis.device help file, I
understood that the
|> > |> >pointsize arg would be referenced to the call to the pdf
function.
|> > |> >
|> > |> >So I set up a trellis pdf device as so:
|> > |> >
|> > |> > trellis.device(device = pdf, file =
"Singers.pdf", height = 160/25.4,
|> > |> > width = 160/25.4, pointsize = 28)
|> > |> >
|> > |> >A base R graphics plot works as I'd expected.
|> > |> >
|> > |> > plot(1:10, 50:59) # silly plot with huge plotting
characters and letters
|> > |> >
|> > |> >However, pointsize is ignored in trellis plots;
|> > |> >
|> > |> > pik <- bwplot(voice.part ~ height, data = singer)#
pointsize ignored
|> > |> > print(pik)
|> > |> > dev.off()
|> > |> >
|> > |> >There are many trellis cex-type settings, but FWIU
they're all
|> > |> >relative to the default size. My question is: How do I set
that
|> > |> >default?
|> > |> >
|> > |> >
|> > |> >R version 3.0.2 (2013-09-25)
|> > |> >Platform: i686-pc-linux-gnu (32-bit)
|> > |> >
|> > |> >locale:
|> > |> > [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
|> > |> > [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
|> > |> > [5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
|> > |> > [7] LC_PAPER=en_US.UTF-8 LC_NAME=C
|> > |> > [9] LC_ADDRESS=C LC_TELEPHONE=C
|> > |> >[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
|> > |> >
|> > |> >attached base packages:
|> > |> >[1] grDevices utils stats graphics methods base
|> > |> >
|> > |> >other attached packages:
|> > |> >[1] RColorBrewer_1.0-5 lattice_0.20-24
|> > |> >
|> > |> >loaded via a namespace (and not attached):
|> > |> >[1] grid_3.0.2 plyr_1.8 tools_3.0.2
|> > |> >
|> > |> >I've tried with R-3.1.0 on another machine so I
don't think the
|> > |> >problem is with an old version.
|> > |> >
|> > |> >I doubt it has much to do with pdf specifically. Attempts
to use png,
|> > |> >bitmap, postscript devices all produce equivalent results.
|> > |> >
|> > |> >
|> > |> >
|> > |> >(Here's all the example code uninterrupted:)
|> > |> >
|> > |> > trellis.device(device = pdf, file =
"Singers.pdf", height = 160/25.4,
|> > |> > width = 160/25.4, pointsize = 28)
|> > |> > plot(1:10, 50:59) # silly plot with huge plotting
characters and letters
|> > |> > pik <- bwplot(voice.part ~ height, data = singer)#
pointsize ignored
|> > |> > print(pik)
|> > |> > dev.off()
|> > |> >
|> > |> >
|> > |> >TIA
|> > |> >
|> > |> >
|> > |>
|> > |>
|> > |> --
|> > |> 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
|> >
|> > --
|> >
~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.
|> > ___ Patrick Connolly
|> > {~._.~} Great minds discuss ideas
|> > _( Y )_ Average minds discuss events
|> > (:_~*~_:) Small minds discuss people
|> > (_)-(_) ..... Eleanor Roosevelt
|> >
|> >
~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.
|> >
|> > ______________________________________________
|> > R-help at r-project.org mailing list
|> > https://stat.ethz.ch/mailman/listinfo/r-help
|> > PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
|> > and provide commented, minimal, self-contained, reproducible code.
|> >
|> > ----- End forwarded message -----
|> >
|> > --
|> >
~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.
|> > ___ Patrick Connolly
|> > {~._.~} Great minds discuss ideas
|> > _( Y )_ Average minds discuss events
|> > (:_~*~_:) Small minds discuss people
|> > (_)-(_) ..... Eleanor Roosevelt
|> >
|> >
~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.
|> >
--
~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.
___ Patrick Connolly
{~._.~} Great minds discuss ideas
_( Y )_ Average minds discuss events
(:_~*~_:) Small minds discuss people
(_)-(_) ..... Eleanor Roosevelt
~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.