Users can have their own R packages installed. The following steps have to be done:

1. Create a .Renviron file, using 'vi' e.g.:

   vi ${HOME}/.Renviron 

   The content of this file points to the directory of your personal libraries, e.g.:

   R_LIBS=${HOME}/R/lib

2. create the directory, which was specified in .Renviron:

   mkdir -p ${HOME}/R/lib 

3. start R and install packages:

   install.packages('sp')