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Re: Cluster analysis [message #41893 is a reply to message #11153]

Fri, 03 December 2004 06:44

James Kuyper
Messages: 425
Registered: March 2000

Senior Member

Harald wrote:
> The cluster analysis in IDL with clust_wts and cluster finds only 8
> useful clusters. I can set n_clusters to a greater number, however all
> cluster more than 8 useful ones are at locations, that do not contain
> any of the samples. Is there any statistical reason that the number of
> clusters can never exceed 8?
>
> I have a data set with 24 variables and 7680 samples and would expect
> that I can easily find 20 or so different clusters.
>
> Does anybody have better IDL software that does the cluster analysis
> properly?

Could you post a copy of your dataset, so we can try to duplicate your
(lack of) results?

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[Message index]

		Cluster analysis By: mph410 on Fri, 27 February 1998 00:00
		Re: Cluster analysis By: David Foster on Mon, 09 March 1998 00:00
		Re: Cluster analysis By: Chris[2] on Tue, 07 December 2004 11:32
		Re: Cluster analysis By: Harald Frey on Mon, 06 December 2004 14:21
		Re: Cluster analysis By: George N. White III on Sun, 05 December 2004 06:43
		Re: Cluster analysis By: Chris.Jacobsen on Fri, 03 December 2004 15:30
		Re: Cluster analysis By: James Kuyper on Fri, 03 December 2004 06:44

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