[R] Lattice, ggplot, and pointsize

[Bert Gunter]

At the risk of misunderstanding... (inline)

On Tue, May 21, 2013 at 12:17 PM, Milan Bouchet-Valat <nalimilan at club.fr> wrote:
> Le mardi 21 mai 2013 à 08:17 -0700, Jeff Newmiller a écrit :
>> That is like complaining that your hammer does not fit these
>> newfangled Philips screws.
>>
>> These are different tools. Do not expect them to interoperate.
> I understand that Lattice and ggplot2 do not use settings from par().
> I'm fine with this, as these packages are different from base graphics
> and have they own equivalent to tweak settings.
>
> What I do not understand is that one argument passed to output devices,
> which are _not_ provided by package graphics, is ignored by these two
> packages. Lattice and ggplot2 do not provide an alternative output
> system,

False, I believe, depending on what you mean by "output system". They
both use grid graphics, not base graphics and with lattice, anyway,
you require a lattice specific device call:

?trellis.device
## this is called automatically when plotting if such a device is not
open already.

Of course, everything works in R, so if that is what you mean by
output system ...

Cheers,
Bert



 so they indeed already "interoperate" with existing output
> devices to a certain extent; though they require you to set a separate
> option in at least one case. Since package graphics has a way to hook
> into the device parameters, maybe Lattice and ggplot2 could have a way
> to adapt they default settings to respect them.
>
>
> And BTW, please provide quotations where I am actually complaining. I'm
> willing to work on improving things where possible. Please do not
> consider any remark or question as a rant -- except if you want to scare
> potential contributors away, of course.
>
>
> Regards
>
>> ---------------------------------------------------------------------------
>> Jeff Newmiller                        The     .....       .....  Go Live...
>> DCN:<jdnewmil at dcn.davis.ca.us>        Basics: ##.#.       ##.#.  Live Go...
>>                                       Live:   OO#.. Dead: OO#..  Playing
>> Research Engineer (Solar/Batteries            O.O#.       #.O#.  with
>> /Software/Embedded Controllers)               .OO#.       .OO#.  rocks...1k
>> ---------------------------------------------------------------------------
>> Sent from my phone. Please excuse my brevity.
>>
>> Milan Bouchet-Valat <nalimilan at club.fr> wrote:
>>
>> >Le mardi 21 mai 2013 à 23:30 +1000, Duncan Mackay a écrit :
>> >> Hi
>> >>
>> >> See par.settings in xyplot
>> >>
>> >> Things are also controlled by
>> >> trellis.par.get()
>> >> to see values
>> >> trellis.par.set()
>> >>
>> >> eg
>> >> xyplot(~Freq|Year, data = sheep2,
>> >>             groups   = farm,
>> >>             par.settings = list(strip.background = list(col =
>> >"transparent"),
>> >>                                 axis.text = list(cex = 0.75),
>> >>                                 par.xlab.text = list(cex = 0.80),
>> >>                                 par.ylab.text = list(cex = 0.80)) ,
>> >...)
>> >>
>> >> HTH
>> >Thanks, but that's not really my question. I've already found the way
>> >to
>> >change text size. What I'm wondering is whether something could be done
>> >so that the pointsize argument that is passed to graphical devices has
>> >an effect on Lattice and ggplot2 plots.
>> >
>> >
>> >Regards
>> >
>> >
>> >> Duncan
>> >>
>> >> Duncan Mackay
>> >> Department of Agronomy and Soil Science
>> >> University of New England
>> >> Armidale NSW 2351
>> >> Email: home: mackay at northnet.com.au
>> >>
>> >>
>> >>
>> >> At 21:18 21/05/2013, you wrote:
>> >> >Hi!
>> >> >
>> >> >When inserting R plots into a document using odfWeave, I fought for
>> >a
>> >> >while to get Lattice plots use the same text size as base plots. I
>> >> >eventually discovered that specifying a point size via e.g.
>> >> >svg(pointsize=10) has no effect on Lattice plots. One needs to
>> >adjust
>> >> >the size manually via:
>> >> >trellis.par.set(fontsize=list(text=10, points=8))
>> >> >
>> >> >This is also developed for both Lattice and ggplot2 by this blog
>> >post:
>> >> >http://gforge.se/2013/03/exporting-plain-lattice-or-ggplot/
>> >> >
>> >> >So I am wondering whether is a by-design limitation or whether this
>> >> >could be improved. I find it very useful to be able to adapt text
>> >size
>> >> >to the output device instead of changing plotting parameters for
>> >each
>> >> >plotting system (especially when you change the resolution of PNG
>> >> >output, or move from one output device to another).
>> >> >
>> >> >Thanks in advance
>> >> >
>> >> >______________________________________________
>> >> >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.
>> >>
>> >> ______________________________________________
>> >> 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.
>> >
>> >______________________________________________
>> >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.
>
> ______________________________________________
> 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.



-- 

Bert Gunter
Genentech Nonclinical Biostatistics

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