I have been trying to test predictions of the river habitat templet
concept based on 27 stream sites, 18 quantitative variables of temporal
variability, 7 quantitative variables of spatial variability for each
stream, 86 species in 6 scales (0 to 5), and 80 fuzzy coded species
modalities in 22 categorical variables.
Following the procedures in Resh et al. (1994) four tables were
separately processed as follows:
1. A species traits table (86 rows, 80 columns) was processed by Fuzzy
COA.
2. An abundance (habitat utilization) table (86 rows, 27 columns) was
processed by row-weighted COA.
3. Coinertia-analysis using the iita.file after matching two tables.
4. Non-centred PCA using two tables of temporal and spatial variability
separately after transformations of all variables described by Cellot et
al. (1994).
My problem: I would like to examine and represent positions of the
stream sites, species, and species modalities in the temporal and
spatial habitat templet graphically, but I don=B4t know how to match the
results of coinertia-analysis with the scores of the temporal and
spatial variability. I think that a further coinertia-analysis may be a
possible solution for it. But how can I prepare for it?
Moreover I cannot find a file which may contain correlation ratios
between each categorical variable and each factorial score of the
coinertia-analysis.
Any help would be appreciated.
Sincerely
Byungok
*************************************************************************
Byungok Ahn
Istitut fur Ekologie
Abt. Hydrobiologie
FB 09 Univ-GH-Essen
Universit=E4tsstr. 5
45117 Essen
e-mail: byungok.ahn@uni-essen.de
Tel.: 0201/183-3201
Fax: 0201/183-2529
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