[R] How to check if R.app is running?

[Nick Matzke]

Probably good enough, thanks!
Nick


On 1/20/13 2:03 PM, Duncan Murdoch wrote:
> On 13-01-20 4:51 PM, Nick Matzke wrote:
>> Hi, here's an obscure question someone can hopefully help
>> with.
>>
>> I have some R code that uses stuff from parallel (now a part
>> of the R core in 2.15 I believe), especially clusterApply.
>> However, this seems to cause problems in R.app, and I've
>> seen advice to not use these multicore functions, e.g. doMC,
>> in R.app.
>>
>> So, I want to make this optional.  How can have a program
>> check whether or not it is running in R.app or regular R?
>>
>> Thanks so much for your help!!
>> Nick
>>
>> PS: I saw this:
>> http://stackoverflow.com/questions/2020790/r-script-determine-whether-the-script-is-run-in-the-gui-or-from-command-line
>>
>>
>> Which says to use:
>>
>> interactive()
>>
>> ...but that doesn't work.  Interactive R is fine (e.g.
>> starting R from Mac Terminal), only R.app is not.
>>
>>
>
> .Platform$GUI will be different in the two cases:  "AQUA"
> for R.app and something else in other cases.  I don't know
> if that's a good test to find out if clusterApply is safe.
>
> Duncan Murdoch
>

-- 
====================================================
Nicholas J. Matzke
Ph.D. Candidate, Graduate Student Researcher

Huelsenbeck Lab
Center for Theoretical Evolutionary Genomics
4151 VLSB (Valley Life Sciences Building)
Department of Integrative Biology
University of California, Berkeley

Graduate Student Instructor, IB200B
Principles of Phylogenetics: Ecology and Evolution
http://ib.berkeley.edu/courses/ib200b/
http://phylo.wikidot.com/


Lab websites:
http://ib.berkeley.edu/people/lab_detail.php?lab=54
http://fisher.berkeley.edu/cteg/hlab.html
Dept. personal page: 
http://ib.berkeley.edu/people/students/person_detail.php?person=370
Lab personal page: 
http://fisher.berkeley.edu/cteg/members/matzke.html
Lab phone: 510-643-6299
Dept. fax: 510-643-6264

Cell phone: 510-301-0179
Email: matzke at berkeley.edu

Mailing address:
Department of Integrative Biology
1005 Valley Life Sciences Building #3140
Berkeley, CA 94720-3140

-----------------------------------------------------
"[W]hen people thought the earth was flat, they were wrong. 
When people thought the earth was spherical, they were 
wrong. But if you think that thinking the earth is spherical 
is just as wrong as thinking the earth is flat, then your 
view is wronger than both of them put together."

Isaac Asimov (1989). "The Relativity of Wrong." The 
Skeptical Inquirer, 14(1), 35-44. Fall 1989.
http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm