I have read with interest the papers published in Freshwat. Biol.
using fuzzy correspondence analysis.
Charvet S. Statzner B. Usseglio-Polatera P. Dumont B.
Author e-mail Address
Traits of benthic macroinvertebrates in semi-natural French streams: an
initial application to biomonitoring in Europe
Freshwater Biology. 43(2):277-296, 2000 Feb.
In this paper I have not well understood how fuzzy correspondence analysis
was carried out on a trait category matrix
weighted on species abundances.
Suppose you have a trait matrix with t species and m modalities (tMm) and
an abundance matrix with n sites and t species
(nYt). It seems that something such as a product matrix nYtMm was
performed, and fuzzy correspoindence analysis was carried out on this matrix.
Can somebody help me ?
prof. Bruno Rossaro
Department of Biology Section Ecology
Univ. of Milano
via Celoria 26 I 20133 Milano (office)
v.le Murillo 21 I 20149 Milano (private address)
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