JSM 2004 - Toronto

Abstract #300196

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Activity Number: 6
Type: Invited
Date/Time: Sunday, August 8, 2004 : 2:00 PM to 3:50 PM
Sponsor: Section on Statistical Computing
Abstract - #300196
Title: GRbase: A Common Platform for Graphical Models in R
Author(s): Claus Dethlefsen*+
Companies: Aalborg University
Address: Dept. of Mathematics, Aalborg, DK-9220, Denmark
Keywords: R ; graphical models ; software
Abstract:

We have developed a package, gRbase, consisting of a number of classes and associated methods to support the analysis of data using graphical models. It is developed for the open source language, R, and is thereby available for several platforms. The package is intended to be widely extendible and flexible so that developers may implement further types of graphical models using the available methods. Grbase contains methods for representing data, a representation of models using graphs, specification of models using a formal language and an interactive graphical user interface for working with models. We show how these building blocks can be combined and integrated with inference engines in some special cases of directed and undirected graphical models.

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Revised March 2004