Rajashekar,

Please look at as.dendrogram() method, which returns a data structure
containing the whole dendogram. Also, you can use $merge on hclust object
to understand how the merging works. From the merge matrix, you can
recreate the dendogram by yourself.

Sagnik

On Thu, Dec 6, 2012 at 11:52 AM, David L Carlson <dcarlson@tamu.edu> wrote:

> First, you are using a very old version of R. The current version is
> 2.15.2. The version you are using was released in summer 2005 so you should
> upgrade as soon as possible.
>
> Second, there are many tools available for cluster analysis. You should
> tell us exactly what you trying to do, not give us examples of the kind of
> thing you want. You are confused by the dendrogram and ask for a matrix
> with different numbers for each group. That suggests you may not understand
> how hierarchical clustering works. The program (agnes() in cluster or
> hclus() in base R) begins with as many clusters as observations and then
> combines observations or clusters at each stage until there is only one
> cluster. The entire process is displayed in the dendrogram.
>
> To get cluster assignments, you need to specify where the clustering
> process should stop and then use the cutree() function to give you the
> cluster assignments at that stage (?cutree to get the help page).
>
> ----------------------------------------------
> David L Carlson
> Associate Professor of Anthropology
> Texas A&M University
> College Station, TX 77843-4352
>
>
>
> > -----Original Message-----
> > From: r-help-bounces@r-project.org [mailto:r-help-bounces@r-
> > project.org] On Behalf Of rajashekar
> > Sent: Thursday, December 06, 2012 8:01 AM
> > To: r-help@r-project.org
> > Subject: [R] tool for cluster analysis
> >
> > I have Windows XP Professional Version 2002 and the R-Version 2.1.1.
> > I did cluster analysis with the cluster package and the agnes (method =
> > “ward”).
> > The results are satisfactory.
> > But the dendrogram of agnes is confused to work with the results.
> > Is there a tool, I can get a clear arrangement of the results for the
> > cluster analysis.
> > For example a matrix with different numbers for each group.
> >
> >
> >
> >
> >
> >
> >
> > -----
> >
> >
> >
> >
> > --
> > View this message in context: http://r.789695.n4.nabble.com/tool-for-
> > cluster-analysis-tp4652333.html
> > Sent from the R help mailing list archive at Nabble.com.
> >
> > ______________________________________________
> > R-help@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide http://www.R-project.org/posting-
> > guide.html
> > and provide commented, minimal, self-contained, reproducible code.
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Sagnik Ray Choudhury
PhD Student, IST PennState
sagnik@psu.edu

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