[R-sig-eco] Cluster Analysis
Jari Oksanen
jari.oksanen at oulu.fi
Thu May 19 21:31:26 CEST 2011
On 19/05/11 20:20 PM, "Francisco Cabrera Rodriguez" <fffcccrrr at yahoo.com>
wrote:
> I would like
> to perform a cluster analysis to data of presence absence.
> Which distance
> and group linkage methods are best?
Francisco,
Nobody knows. Honestly. Some people may have opinions. Even strong opinions.
Perhaps they will help you.
We can start from the easier part: what makes a good class, in your opinion?
Should they be uniform? or compact? or connected? or distinct? These
criteria are contradictory and you must make your pick.
Reading a good book may help.
Cheers, Jari Oksanen
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