[R] Cluster Analysis: Density-Based Method

[Martin Maechler]

>>>>> "AndyL" == Liaw, Andy <andy_liaw at merck.com>
>>>>>     on Thu, 21 Oct 2004 09:18:54 -0400 writes:

    AndyL> I'm no expert in this, but mclust is `density-based'
    AndyL> because it estimates the density with a mixture of
    AndyL> Gaussians.  If this is not what you want, you should
    AndyL> clarify what you mean by `density-based'.  Do you
    AndyL> mean an algorithm based on kernel estimator of the density?

yes, kernel or other "nonparametric" density estimator, is what
is usually meant in these contexts.
[ Of course, many "nonparametric" estimators can be seen to live
  in finite-dimensional spaces, so the difference to an explicit
 "flexible" / "high dimensional" method isn't that big.. ]

Martin

    >> From: Fernando Prass
    >> 
    >> Yes, but mclust don't have a density-based algorithm. Mclust 
    >> have the algorithm
    >> BIC, that is a model-based method...
    >> 
    >> Fernando Prass
    >> 
    >> --- Kjetil Brinchmann Halvorsen <kjetil at acelerate.com> escreveu: 
    >> > Fernando Prass wrote:
    >> > 
    >> > >Hi people,
    >> > >
    >> > >Does anybody know some Density-Based Method for clustering 
    >> implemented in R?
    >> > >  
    >> > >
    >> > Have you looked at CRAN package mclust?
    >> > 
    >> > >Thanks,
    >> > >
    >> > >Fernando Prass
    >> 
    >> 
    >> 
    >> 
    >> 
    >> 
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    AndyL> ______________________________________________
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