[R] Fw: hierarhical cluster analysis of groups of vectors

[Rafael Duarte]

Yes, of course.
But since the initial question referred the use of dist(), (I suppose 
with Euclidean distances) and hclust on a matrix with a priori known 
groups, discriminant analysis seemed adequate to me.
It was only a suggestion, without having much detail about the problem.
Thanks,
Rafael


Ron Michael wrote:

> -->
> Hi Rafael,
>
> What about multivariate logistic regression?
>
> ----- Forwarded Message ----
> From: Rafael Duarte <rduarte at ipimar.pt>
> To: Anders Malmendal <anders at chem.au.dk>
> Cc: r-help at stat.math.ethz.ch
> Sent: Tuesday, May 29, 2007 3:21:11 PM
> Subject: Re: [R] hierarhical cluster analysis of groups of vectors
>
> It seems that you have already groups defined.
> Discriminant analysis would probably be more appropriate for what you 
> want.
> Best regards,
> Rafael Duarte
>
>
>
> Anders Malmendal wrote:
>
> >I want to do hierarchical cluster analysis to compare 10 groups of
> >vectors with five vectors in each group (i.e. I want to make a dendogram
> >showing the clustering of the different groups). I've looked into using
> >dist and hclust, but cannot see how to compare the different groups
> >instead of the individual vectors. I am thankful for any help.
> >Anders
> >
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>
>
> -- 
> Rafael Duarte
> Marine Resources Department - DRM
> IPIMAR -  National Research Institute for Agriculture and Fisheries
> Av. Brasília, 1449-006 Lisbon  -  Portugal
> Tel:+351 21 302 7000      Fax:+351 21 301 5948
> e-mail: rduarte at ipimar.pt
>
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-- 
Rafael Duarte
Marine Resources Department - DRM
IPIMAR -  National Research Institute for Agriculture and Fisheries
Av. Brasília, 1449-006 Lisbon  -  Portugal
Tel:+351 21 302 7000      Fax:+351 21 301 5948
e-mail: rduarte at ipimar.pt