How to test if R is running on a Mac

On linux boxes,
   version$os and R.version$os
is 'linux-gnu'. I assume that it would be 'darwin-apple' on
Mac's?

Henrik Bengtsson wrote:

isApple <- function(...) {
  isApple <- FALSE;
  tryCatch({
    ans <- readline("Do you see an Apple key on the keyboard you are
typing on? yes/no");
    isApple <- (ans == "yes");
  }, mouseClick = function(ex) {
    isApple <<- TRUE;
  })
}

/H


On 9/19/07, Duncan Murdoch <murdoch at stats.uwo.ca> wrote:

On 9/19/2007 9:41 AM, Gorjanc Gregor wrote:

Hi!

Is there any way to test if R is running on a Mac? I usually use
value of .Platform$OS.type for windows or unix, but Mac falls in  
the
latter group.

Remember to also look at .Platform$GUI:  the GUI version behaves  
quite
differently from command line R from a user's point of view (both  
on the
Mac and on Windows), and occasionally from a programmer's point  
of view
(e.g. the graphics device on the Mac).

Duncan