[R] Mahalanobis distance

Petr PIKAL petr.pikal at precheza.cz
Tue Oct 26 16:19:28 CEST 2010


Hi

In that case you have to wait if some more capable people will try to 
answer you. Besides there are some clustering methods which maybe you can 
use directly.

??cluster

Regards
Petr

"Ivone Figueiredo" <ivonefig at ipimar.pt> napsal dne 26.10.2010 12:36:20:

> Hi
> 
> Yes we tried but this function Returns the squared Mahalanobis distance 
of
> all rows in x and the vector mu = center with respect to Sigma = cov.
> We can the mahalanobis distance to apply in clutser analysis so we need 
the
> distance between all the elements in the matrix
> Thanks
> Ivone
> 
> -----Mensagem original-----
> De: Petr PIKAL [mailto:petr.pikal at precheza.cz] 
> Enviada: terça-feira, 26 de Outubro de 2010 11:20
> Para: Ivone Figueiredo
> Cc: r-help at r-project.org
> Assunto: Odp: [R] Mahalanobis distance
> 
> Hi
> 
> r-help-bounces at r-project.org napsal dne 26.10.2010 10:55:57:
> 
> > Hi everyone,
> > 
> > Can you please help me on how to estimate the Mahalanobis distance in 
a
> > large matrix
> 
> did you by chance tried ?mahalanobis
> 
> Regards
> Petr
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> > Thanks
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> > ______________________________________________
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