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libPaths how to change (R 3.0.2 64bit, RStudio 0.98.501, Windows 7)
2 messages · Lopez, Dan, Jeff Newmiller
What you are really asking is how environment variables get set outside of R, which is very OS-specific and not on topic here, and there can be numerous ways for it to happen even on a single OS. I will warn you that the path syntax can vary in Windows depending on where it gets set so beware of ~ expansion (doesn't always work) and forward/back-slash distinctions. You can start looking in the System control panel under Advanced and Environment Variables... you will probably need Admin privileges to go there. Google is your friend.
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On February 25, 2014 10:57:00 AM PST, "Lopez, Dan" <lopez235 at llnl.gov> wrote:
R Experts,
I had a problem when trying to install package tm. The install looked
successful ("Package 'tm' successfully unpacked and MD5 sums checked")
but I could not load it through
library(tm). It kept complaining that tm package was not installed.
So it was through this problem that I realized I had two locations
where my packages are stored:
C:R/R-3.0.2/library #Preferred
\\\\lab.gov/users/lopez/Data/documents/R/win-library/3.0 #NOT
Preferred
I am not sure when and how the second location was created. But now I
want to change my default location to the "Preferred" location.
I referred to
http://stat.ethz.ch/R-manual/R-devel/library/base/html/libPaths.html
but I don't understand how to set the environment variables R_LIBS or
R_LIBS_SITE, which is what I understood I need to do. I looked in
R\R-3.0.2\etc and did not find a Renviron file (per
http://mathematicalcoffee.blogspot.com/2013/04/getting-rstudio-to-include-your.html).
So I created one (file name exactly as "Renviron") and set the variable
(R_LIBS_USER=~/R/library) there but when I do the following I still see
both library paths:
.libPaths()
[1] "\\\\lab.gov/users/lopez/Data/documents/R/win-library/3.0" "C:/R/R-3.0.2/library" I only want the preferred path. How do I remove the unwanted path? BTW I did find a solution to installing tm properly but want to prevent similar problem from happening in the future by only having one library path. Dan Lopez Workforce Analyst HRIM - Workforce Analytics & Metrics Strategic Human Resources Management (925) 422-0814 [[alternative HTML version deleted]]
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