How to check if R.app is running?
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