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Authors: Heinrich Fritz, Luis A. García-Escudero, Agustín Mayo-Iscar
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tclust: An R Package for a Trimming Approach to Cluster Analysis
Reference: Vol. 47, Issue 12, May 2012
Submitted 2011-02-22, Accepted 2012-03-07
Type: Article
Abstract:

Outlying data can heavily influence standard clustering methods. At the same time, clustering principles can be useful when robustifying statistical procedures. These two reasons motivate the development of feasible robust model-based clustering approaches. With this in mind, an R package for performing non-hierarchical robust clustering, called tclust, is presented here. Instead of trying to “fit” noisy data, a proportion α of the most outlying observations is trimmed. The tclust package efficiently handles different cluster scatter constraints. Graphical exploratory tools are also provided to help the user make sensible choices for the trimming proportion as well as the number of clusters to search for.

Paper: [download]
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tclust: An R Package for a Trimming Approach to Cluster Analysis
(application/pdf, 798.8 KB)
Supplements: [download]
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tclust_1.1-02.tar.gz: R source package
(application/x-gzip, 1007.2 KB)
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v47i12.R: R example code from the paper
(application/octet-stream, 14.4 KB)
Resources: BibTeX | OAI
Creative Commons License
This work is licensed under the licenses
Paper: Creative Commons Attribution 3.0 Unported License
Code: GNU General Public License (at least one of version 2 or version 3)
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