Installing SAM on an IMAC SAM does not work directly on a MAC, but can be run under the Parallels windows emulation software. You need to purchase the Parallels package ($49 at our bookstore) and you need a copy of windows XP and windows Office/Excel (2003 or 2007). Here are the steps: 1) install Parallels 2) fire up Parallels and install windows XP 3) install office 2007 in windows XP 4) install the *windows** version of the R package from http://cran.r-project.org/ 5) install SAM from http://www-stat.stanford.edu/~tibs/SAM/index.html The whole process takes about an hour.