Ward's method as initially implemented by Ward generally does not produce
the best hierarchical solutions. Unless your data are of a naturally
hierarchical nature, I would suggest looked at some other method. You may
wish to check the website for "CLUSTAN" package of programs; also obtain an
old CLUSTAN manual which would explain in some detail the operation of many
distance measures as well as a good variety of clustering methods.
Leo Horseman
From: "Kejun (Kevin) Mei" <[EMAIL PROTECTED]>
Reply-To: "Classification, clustering, and phylogeny estimation"
<[email protected]>
To: [email protected]
Subject: clustering with distance matrix as input
Date: Fri, 15 Sep 2006 15:17:57 -0500
Can someone please tell me a clustering method that use
a distance matrix as input? I tried implementing the Ward
method, but found the final clusters are not so good in my
application, when I trace how clusters are grouped and
how cluster centers are updated. I am seeking an improved
version of the Ward method, or any others.
Thank you so much and have a great weekend.
-Kevin
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