[R] How to access to sum of dissimilarities in CLARA

From: Amir Safari <amsa36060_at_yahoo.com>
Date: Tue 31 May 2005 - 19:20:24 EST

   

Dear Matthias,
So many thanks for your answer. Let me please to say I mean the SUM of dissimilarities. For example I want to compare the result of a clustering with k=4 with another clustering with k=5 . How is it possible to compare these two results ? What give us p$diss? ( a lot of dissimilarities). We need only a single measure( sum of dissimilarities.apart of silhouette measure). Thanks again.
Amir  

TEMPL Matthias <Matthias.Templ@statistik.gv.at> wrote: Hello,

#Example:

data(xclara)
p <- clara(xclara,3)
names(p)
p$diss

Best,
Matthias

> Dear All ,
> Since dissimilarity is one of quality measures in clustering
> , I'm trying to access to the sum of dissimilarity as a whole
> measure. But after running my data using CLARA I obtain :
> 1128 dissimilarities, summarized :
> Min. 1st Qu. Median Mean 3rd Qu. Max.
> 0.033155 0.934630 2.257000 2.941600 4.876600 8.943700
> But I can not find the sum of dissimilarity.How can i access to it?
>
> Thanks a lot
> Safari
>
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R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue May 31 19:28:39 2005

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