Note:  this doesn't seem to work on all machines.  Sorry!

At home:  use load package on the package menu.


At CSU: you can't write to the correct directory to use the menus, so
you need to follow these steps: 

1.  Go to the Cran website:

http://lib.stat.cmu.edu/R/CRAN/

2.  Click on the packages link (on the left side of the page)

Find the package that you want to use, click on the link to it, and then

save the Windows binary version of your package to your own directory.

3.  In R:  select packages-> Install packages from local zip file

Follow the links to select the package you saved in step 2.

4.  After that, you should be able to use the library(package.name)
function as usual.  If you switch computers at CSU, you won't be able
to find a package that you've installed as above.  In that case, add
the following to the library command:

    library(package.name, lib.loc="p:/myRlib")

where the p:/ part gives the path to your  directory where the zip
file is saved.