Setting working directory interactively within a function

?setwd
e.g. setwd(file.choose())

BTW, you could have found this on your own via help.search('working
directory') . Base R has quite good docs -- you should try them first.

-- Bert Gunter

That won't work in Windows, where the dialogs don't consider directories 
to be files so won't return them.

As far as I know no platform lets you setwd() to a file (even though 
this might make sense:  setwd("foo") could mean change to foo if it's a 
directory, to the directory it's in if it's a file).

Duncan Murdoch