Abstract : The mixtools package for the R statistical software provides a set of functions for analyzing a variety of finite mixture models. These functions include both traditional methods, such as EM algorithms for univariate and multivariate normal mixtures, and newer methods that reflect some recent research in finite mixture models. In the latter category, mixtools provides algorithms for estimating parameters in a wide range of different mixture-of-regression contexts, in multinomial mixtures such as those arising from discretizing continuous multivariate data, in nonparametric situations where the multivariate component densities are completely unspecified, and in semiparametric situations such as a univariate location mixture of symmetric but otherwise unspecified densities. Many of the algorithms of the mixtools package are EM algorithms or are based on EM-like ideas, so this article includes an overview of EM algorithms for finite mixture models.
https://hal.archives-ouvertes.fr/hal-00384896
Contributeur : Didier Chauveau <>
Soumis le : samedi 16 mai 2009 - 18:18:29
Dernière modification le : mercredi 4 novembre 2009 - 13:51:59
Document(s) archivé(s) le : lundi 15 octobre 2012 - 10:31:58
Tatiana Benaglia, Didier Chauveau, David Hunter, Derek Young. mixtools: An R Package for Analyzing Finite Mixture Models. Journal of Statistical Software, University of California, Los Angeles, 2009, 32 (6), pp.1-29. <hal-00384896>
