[R] Same code on Mac?
drjimlemon at gmail.com
Fri Sep 2 00:38:42 CEST 2016
Sometimes the problem stems from chronic exposure to user interfaces.
Yesterday I prepared some material for a Mac user's presentation and
"This text file tells you the names of the files you need for the presentation"
the response was,
"Can I click on it?"
I deleted all the files in the directory apart from the necessary ones
and crossed my fingers.
On Fri, Sep 2, 2016 at 1:50 AM, Sarah Goslee <sarah.goslee at gmail.com> wrote:
> R already contains platform-independent code to open a graphics
> device: dev.new()
> The device thus created is specified in options(), but by default is
> appropriate for the current platform.
> It's good practice to use this function instead of calling quartz()
> directly so that your code can be run on other systems.
> On Thu, Sep 1, 2016 at 11:34 AM, Franklin Bretschneider
> <bretschr at xs4all.nl> wrote:
>> Dear Tom Mosca,
>>> Using a PC I have written the R code for my elementary statistics students. One of the students has a Mac. Should the same lines of code work on a Mac?
>>> Where can the student find support for R on her Mac? I don't know anything about them, and have never used one.
>> Some commands are platform-dependent though, such as opening the standard graphics window [quartz() vs windows()].
>> This needn't be a problem, since in R a script can sense on which platform it is running.
>> Some years ago I wrote a platform-sensing graphics routine, reproduced below.
>> This might help to prevent problems with simple graphics demos, and can no doubt be extended to other commands.
>> Success, and
>> Best regards,
>> Franklin Bretschneider
>> Dept of Biology
>> Utrecht University
>> bretschr at xs4all.nl
>> # function PIgraph.r
>> # Platform-Independent graphics init
>> # determines platform (Windows or Mac) then chooses device type
>> # F. Bretschneider; 04-08-2009
>> # ====================
>> PIgraph <- function(w,h) if(.Platform$OS.type == "windows") windows(w=w, h=h) else quartz(w=w, h=h)
>> # example application
>> plot(x,y, type = 'o')
>> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
> Sarah Goslee
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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