How to check if R.app is running?
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