At the beginning of the course we will do a handful of these labs,
as a quick way to become familiar with some R software for descriptive
network analysis, and to become familiar with descriptive network
terminology.

The original labs are available on-line at http://sna.stanford.edu/rlabs.php
but I found that they haven't been maintained as the underlying R packages
have evolved, and so I have copied them all here and edited them where I 
could quickly find fixes for things that had been broken by obsolescence.

So, you are probably better off using the R files here than the ones at the 
stanford sna site. Note that the data sets can all be imported directly into
R via the www, as documented in the R files within each lab.

Before you begin, you should run the R file "setup.r" once, to install most of 
the R packages you will need.  There are one or two more to install, sprinkled
around the labs, but at least "setup.r" will set you up with most of them.

Let Mauricio (the course TA) or me know, if you are having any difficulties 
accessing the R files or the data sets, or if something isn't running in R the
way you expect it to.

all best,

-BJ