Dealing with very large datasets using BIRCH birch is an implementation of the algorithms described in Zhang et al (1997), and provides functions for creating CF-trees, along with algorithms for dealing with some combinatorial problems, such as covMcd and ltsReg. It is very well suited for dealing with very large data sets, and does not require that the data can fit in physical memory. Software Depends: R (>= 2.10), ellipse Suggests: MASS Lysiane Charest <lysiane.charest@hec.ca> Lysiane Charest, Justin Harrington, Matias Salibian-Barrera GPL 2012-05-04 application/tgz http://CRAN.R-project.org/package=birch