[R-SIG-Mac] Installing binary packages from a disk

[Duncan Murdoch]

I have a CDR with a collection of *.tgz binary packages on it.  I can 
install them all with something like

 install.packages(list.files( "/Volumes/071127_1456/MacOSX/Packages", 
full=T),repos=NULL)

but is there a way to do it from the Package Installer in the GUI?  I'm 
going to be teaching some people R on Friday, and I'd like to be able to 
tell the Mac users how to do this in a friendly way.

Duncan Murdoch