I am running R on Windows, not as an administrator. When I install a package, the following command doesn\'t work:
> install.packages(\"zoo\")
Installing
I managed to solve the problem by placing the code in the .Rprofile file in the default working directory.
First, I found the location of the default working directory
> getwd()
[1] "C:/Users/me/Documents"
Then I used a text editor to write a simple .Rprofile file with the following line in it
.libPaths("C:/software/Rpackages")
Finally, when I start R and run .libPaths() I get the desired output:
> .libPaths()
[1] "C:/software/Rpackages" "C:/Program Files/R/R-2.15.2/library"
[3] "C:/Program Files/RStudio/R/library"