r-cran-rpart 4.1-11-1 (amd64 binary) in ubuntu artful

 This package provides functions to recursive partitioning and regression
 trees.
 .
 This package is part of the set of packages that are 'recommended'
 by R Core and shipped with upstream source releases of R itself.
 .
 URL (of the S-Plus original): http://www.mayo.edu/hsr/Sfunc.html