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Re: st: cluster analysis: differences between clusters
From
Brendan Halpin <[email protected]>
To
Nick Cox <[email protected]>
Subject
Re: st: cluster analysis: differences between clusters
Date
Fri, 7 Mar 2014 15:10:10 +0000
On Fri, Mar 07 2014, Nick Cox wrote:
> I don't think this would mean very much. Once clusters are identified
> from the data you are not then really in a sound position taking them
> back into a significance test.
This is a good point, but it doesn't mean that the effort is worthless.
Doing this can give you insight, e.g., into the relative effectiveness
of different approaches to clustering (different linkage, different
numbers of clusters). But I'd treat it as a score rather than a strict
hypothesis test.
Brendan
--
Brendan Halpin, Head, Department of Sociology, University of Limerick, Ireland
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