[Taxacom] software recommendation please
rjensen at saintmarys.edu
Tue Nov 13 10:40:22 CST 2007
From the sample shown below, the data will yield a non-metric
similarity (notice the inequality of the similarity of B-C versus C-B).
There are non-metric similarity measures, such as those of Kulczynski
and Yule, that can be used as input for cluster analysis and non-metric
multidimensional scaling. NTSYSpc (available from Exeter Software)
provides these and a variety of other coefficients.
Richard Jensen, Professor
Department of Biology
Saint Mary’s College
Notre Dame, IN 46556
Soowon Cho wrote:
> Dear members,
> A friend of mine asked me about how to group his microorgarnisms based on
> certain reactions among each others, but I am not familiar with such. He
> said his data is like the following:
> A B C D .....
> A 0 1 0 1
> B 1 0 0 0
> C 0 1 0 1
> D 1 0 0 0
> For the above, A is responding to B and D only, B is responding to A only, C
> is responding to B and D only,.....etc.
> His data is with nearly a hundred OTUs and he wants to know which software
> is good to use for grouping them based on the result.
> My initial thought was about UPGMA or PCA, but I am not sure. Could anyone
> tell me which method (software) is good to analyze this kind of data for
> grouping based on "similarity"(I guess)?
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> Taxacom at mailman.nhm.ku.edu
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