[R] .libPaths(new) stopped working in 2.10

[Duncan Murdoch]

On 06/12/2009 2:53 PM, Alexy Khrabrov wrote:
> I have the .libPaths() defined in my .Rprofile, and it stopped having any effect.  Even if I try to do it in the REPL, as:
> 
>> x <- paste(Sys.getenv("HOME"),"/Library/R/",paste(R.version$major,as.integer(R.version$minor),sep='.'),"/library",sep='')
>> x
> [1] "/Users/alexyk/Library/R/2.10/library"
>> .libPaths(x)
>> .libPaths()
> [1] "/Library/Frameworks/R.framework/Resources/library"
> 
> Nothing GUI'sh.
> (Changing back to r-help as it's by no means obvious yet it's a Mac-only problem.)

Does that directory exist?  .libPaths("foobar") silently does nothing, 
because (on my system) "foobar" is not a directory. (This is documented 
behaviour, though it would perhaps be friendlier if it gave a warning 
when it dropped a requested addition.)

I don't think this is new behaviour...

Duncan Murdoch