[R] Where does R look for library packages - there is no package called 'BRugs'

[David Winsemius]

On Jan 30, 2011, at 5:42 PM, conor1725 wrote:

>
> I am have installed R on Windows 7 machine. R got installed in the  
> directory
> C:\Program Files\R\R-2.12.0. Then I installed the package BRugs  
> using the
> install.packages command. I did not get an option during the  
> installation as
> to what directory I wanted BRugs installed in. It ended up in
> C:\myusername\Documents as C:\myusername\Documents\R\win-library 
> \2.12\BRugs.
> When I open and R and run the command library(BRugs) it works fine.
>
> However, I would like to move the BRugs stuff out of my Documents  
> folder,
> either to a subdirectory under Documents of my choosing or to  
> somewhere in
> C:\Program Files\R\R-2.12.0. I tried just moving the whole folder and
> subfolders R\win-library\2.12\... from Documents to a subfolder. I  
> don't
> think this matters, but just to complete, there is also a folder  
> called Coda
> with the BRugs folder in the 2.12 folder and of course there are  
> subfolders
> and files under each of the folders Coda and BRugs. Then when I try
> library(BRugs) I get the error message "Error in library(BRugs) :  
> there is
> no package called 'BRugs'". So it seems R only knows to look for the  
> BRugs
> package in it's original installation location.
>
> How can I get it to work having BRugs in one of my desired locations?

Then you need to understand where R will be able to find your  
packages, and how one might change that:

?libPaths

-- 
David Winsemius, MD
West Hartford, CT