[R] Lattice, ggplot, and pointsize
Prof Brian Ripley
ripley at stats.ox.ac.uk
Tue May 21 22:39:06 CEST 2013
On 21/05/2013 21:24, Bert Gunter wrote:
> 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,
Indeed. The issue is a design difference between the base and grid
graphics subsystems. See the 'R Internals' manual for more details.
> 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.
>
>
>
--
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
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