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From |
"Daniel Stegmueller" <d.stegmueller@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Model-based Clustering |

Date |
Tue, 28 Aug 2007 12:38:42 +0200 |

Lina, Stas is right - Fraley and Raftery's approach is implemented in R in the 'mclust' package. They also have a nice piece in JASA 97 (p. 611-31) explaining the general procedure... Best, Daniel 2007/8/26, Stas Kolenikov <skolenik@gmail.com>: > There were some commands to do normal mixtures (which you could try to > -findit-), but Fraley & Raftery's approach is deeply Bayesian, which > does not mesh up terribly well with Stata's concepts. I would guess > they had their implementation in Splus, as there were no R around back > in 1990s, but they may have ported in to R since then. > > On 8/24/07, Lina Jonsson <lina.jonsson@vti.se> wrote: > > Hello. > > > > I know that there exist a function called mclust that works with S-PLUS for Model-based Cluster Analysis according to an article by Fraley and Raftery from 1998. Sense I´m no expert when it comes to clustering, it´s hard for me to be more specific. But in the article model-based cluster analysis is described as "In model-based cluster analysis data are represented by a mixture model in which each component corresponds to a different cluster. Models with varying geomteric properties are obtained through Gaussian compnents with different parameterixations and cross-cluster constraints..." I hope this gives you a clue to what I`m after. I appreciate all the help and suggestions I can get. > > > > Best Regards > > > > Lina Jonsson > > > > > > > > > > > > > -----Ursprungligt meddelande----- > > > Från: owner-statalist@hsphsun2.harvard.edu > > > [mailto:owner-statalist@hsphsun2.harvard.edu] För Marcello Pagano > > > Skickat: den 24 augusti 2007 14:25 > > > Till: statalist@hsphsun2.harvard.edu > > > Ämne: Re: st: Model-based Clustering > > > > > > Can you be a little more specific please, Lina? > > > Clustering can have about three different meanings in a > > > statistical context, and that's just off the top of my head, > > > that are quite different. > > > > > > m.p. > > > > > > Lina Jonsson wrote: > > > > Hello. > > > > > > > > I would like to do model-based clustering so I wonder if > > > there are any > > > > commands for doing this i Stata. > > > > > > > > > > > > Best Regards > > > > > > > > Lina Jonsson > > > > > > > > * > > > > * For searches and help try: > > > > * http://www.stata.com/support/faqs/res/findit.html > > > > * http://www.stata.com/support/statalist/faq > > > > * http://www.ats.ucla.edu/stat/stata/ > > > > > > > * > > > * For searches and help try: > > > * http://www.stata.com/support/faqs/res/findit.html > > > * http://www.stata.com/support/statalist/faq > > > * http://www.ats.ucla.edu/stat/stata/ > > > > > > > * > > * For searches and help try: > > * http://www.stata.com/support/faqs/res/findit.html > > * http://www.stata.com/support/statalist/faq > > * http://www.ats.ucla.edu/stat/stata/ > > > > > -- > Stas Kolenikov, also found at http://stas.kolenikov.name > > Small print: Please do not reply to my Gmail address as I don't check > it regularly. > > * > * For searches and help try: > * http://www.stata.com/support/faqs/res/findit.html > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ > -- Friend to Groucho Marx: "Life is difficult!" Marx to Friend: "Compared to what?" Daniel Stegmüller Böckstr. 11 68159 Mannheim 0621/9783639 * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**st: Model-based Clustering***From:*"Lina Jonsson" <lina.jonsson@vti.se>

**Re: st: Model-based Clustering***From:*Marcello Pagano <pagano@hsph.harvard.edu>

**SV: st: Model-based Clustering***From:*"Lina Jonsson" <lina.jonsson@vti.se>

**Re: st: Model-based Clustering***From:*"Stas Kolenikov" <skolenik@gmail.com>

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