Script to run sparse k-means clustering with resampling in order to split a group of subjects into PIB+ and PIB-
R (http://www.r-project.org/) Note: R must be compiled as a shared library in order to import rpy2. For details, see http://rpy.sourceforge.net/rpy_faq.html
R packages: sparcl (Script will check for install of sparcl. If not found, will install to ~/.rpackages. http://cran.r-project.org/web/packages/sparcl/index.html)
Python modules: rpy2 (http://rpy.sourceforge.net/rpy2.html) pandas (http://pandas.pydata.org/)