[R] equivalent of the Splus function "eboulis()"
n.bouget@laposte.net
n.bouget at laposte.net
Tue May 25 15:06:12 CEST 2004
This function already exists in the package multidim (see
http://cran.r-project.org/doc/packages/multidim.pdf)
What i want to do is to choose the good number of cluster
after using the function hclust on 6934 instances.
> hc <- hclust(dist(AGRIINSTTableFinaleCR), "ward")
I use the following expression
> barplot(sort((hc$height/sum(hc$height))*100,decreasing=TRUE))
and i choose as number of cluster the number before a big fall
but i'm not sure that is the good mean to choose the number of
cluster!
> On Tue, 25 May 2004, n.bouget wrote:
>
> > Is there a equivalent of the function "eboulis()" (which is a
> > new funtion on Splus) on R?
>
> There is no such function in the latest S-PLUS, version 6.2.
Further,
> S-PLUS is an English product and `eboulis' appears to be French.
>
> > Otherwise, with which function can we see the best number of
> > cluster we have to choose?
>
> Please check out where you got that function from, and give
us a
> description of what you are looking for. We cannot tell you
the
> equivalent of a non-existent function (except to give you a
list of
> non-existent R functions).
>
> --
> Brian D. Ripley, ripley at stats.ox.ac.uk
> Professor of Applied Statistics,
http://www.stats.ox.ac.uk/~ripley/
> University of Oxford, Tel: +44 1865 272861 (self)
> 1 South Parks Road, +44 1865 272866 (PA)
> Oxford OX1 3TG, UK Fax: +44 1865 272595
>
>
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