[R] agglomerative coefficient in agnes (cluster)

Weiguang Shi wgshi2001 at yahoo.ca
Tue Jan 25 06:11:26 CET 2005


I haven't read the book, but could anyone explain more
about this parameter? 

help(agnes) says that ac measures the amount of 
clustering structure found. From the definition given
in help(agnes.object), however, it seems that as long
as 
the dissimilarity of the merger in the final step of
the
algorithm is large enough, the ac value will be close
to 
1. So what does ac really mean?

Thank you,
Weiguang




More information about the R-help mailing list