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R interface to (some of) cddlib (<http://www.ifor.math.ethz.ch/~fukuda/cdd_home/cdd.html>). Converts back and forth between two representations of a convex polytope: as solution of a set of linear equalities and inequalities and as convex hull of set of points and rays. Also does linear programming and redundant generator elimination (for example, convex hull in n dimensions). All functions can use exact infiniteprecision rational arithmetic.
Package details 


Author  Charles J. Geyer <[email protected]> and Glen D. Meeden <[email protected]>, incorporates code from cddlib (ver 0.94f) written by Komei Fukuda <[email protected]> 
Maintainer  Charles J. Geyer <[email protected]> 
License  GPL2 
Version  1.2 
URL  http://www.stat.umn.edu/geyer/rcdd/ 
Package repository  View on CRAN 
Installation 
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