[R] Clustering

[Birgit Lemcke]

Hello Eleni,

as far as I understood and used agnes() the method argument  
determines only the clustering method.
If you use diss=TRUE the distances should be taken from the distance  
matrix.

Birgit

Am 28.11.2007 um 12:18 schrieb Eleni Christodoulou:

> Hello all!
>
> I am performingsome clustering analysis on microarray data using
> agnes{cluster} and I have created my own dissimilarity matrix  
> according to a
> distance measure different from "euclidean" or "manhattan" etc. My  
> question
> is,  if I choose for example method="complete", how are the distances
> between the elements calculated? Are they taken form the dissimilarity
> matrix I have provided as the first argument?
> clust.complete.agnes<-agnes(as.dist(D),diss="TRUE",method="complete")
>
>
> Thank you very much,
> Eleni
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at 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.

Birgit Lemcke
Institut für Systematische Botanik
Zollikerstrasse 107
CH-8008 Zürich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke at systbot.uzh.ch