R help - Mar 2006 - plot and validation in clustering

Hi there,

 

I use function "kmeans" and "clara" to cluster one flow
cytometry
dataset. By using function "plot", the clusters got from
"clara" can be
graphed, while "kmeans" not. How can I get the plot of the clusters of
"kmeans"?

 

And, I hope to compare the two methods "kmeans" and "clara",
or in other
word, I want to validate the clustering methods. Which function in R
could work on the validation?  

 

Thanks a lot!


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> Hi there,
> 
>  
> 
> I use function "kmeans" and "clara" to cluster one flow
> cytometry dataset. By using function "plot", the clusters got 
> from "clara" can be graphed, while "kmeans" not. How
can I
> get the plot of the clusters of "kmeans"?
library(cluster)
data(xclara)
a1 <- clara(xclara, 3)
a2 <- kmeans(xclara, 3)
class(a1)
class(a2)
help(partition.object)
 
You need the same components for your object as a partition.object (and
the same class).
I think this can be done, but it is a little bit of work.
> 
>  
> 
> And, I hope to compare the two methods "kmeans" and
"clara",
> or in other word, I want to validate the clustering methods. 
> Which function in R could work on the validation?  
library(fpc)
?cluster.stats

Best,
Matthias
> 
>  
> 
> Thanks a lot!
> 
> 
> 	[[alternative HTML version deleted]]
> 
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