[R-pkgs] New package: RoughSets (v1.0-0)

Christoph Bergmeir c.bergmeir at decsai.ugr.es
Wed Feb 5 17:27:17 CET 2014

Dear R users,

we are happy to announce that a new package, RoughSets, is available on CRAN at


It is a comprehensive package for rough set theory and fuzzy rough set theory, with a detailed manual and many demos showing it's use. Here is the description:

This package provides comprehensive implementations of the rough set theory (RST) and the fuzzy rough set theory (FRST), and integrates these two theories into a single package. It provides implementations, not only for the basic concepts of RST and FRST, but also most common methods based on them for handling some tasks such as discretization, feature selection, instance selection, rule induction, and prediction. RST was introduced by Zdzislaw Pawlak in 1982 as a sophisticated mathematical tool based on indiscernibility relations to model and process imprecise or incomplete information. It works on symbolic-valued datasets for tackling the data analysis problems. By using the indiscernibility relation for objects/instances, RST does not require additional parameters to analyze the data. FRST is an extension of RST. The FRST combines concepts of vagueness and indiscernibility that are expressed with fuzzy sets (as proposed by Zadeh, in 1965) and RST.

Any feedback is clearly welcome.

Kind regards,

Christoph Bergmeir
e-mail: c.bergmeir at decsai.ugr.es
Grupo SCI2S, DiCITS Lab          (http://sci2s.ugr.es/DiCITS)
Dpto. de Ciencias de la Computacion e Inteligencia Artificial
E.T.S. Ingenierias de Informatica y Telecomunicacion
Universidad de Granada
18071 - GRANADA (Spain)

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