ordination scores as response matrix

[nina nikolic]

Hallo!
I have started using HyperNiche and it's a marvelous experience, thank you!
Yet, as a beginner, I have one trivial question which I have not been able to resolve on my own for some days, please help.
I would like to relate community ordination scores to multiple environmental variables. 
How should my response matrix look like?
I have 3d ordinations scores (exported envelope curves after NMS); I have tried to have 3 columns for species scores along each of the 3 axes. However, apparently it's not ok, because I do not actually have ROW names in such a matrix.

Please, what should be rows, and what columns in a response matrix containing ordination scores for species?

[Bruce McCune]

The first part of your message makes it sound like you would like to
regress scores for sample units against environmental variables. That
you should do by first exporting the scores (not envelope curves) in
the graph module of PC-ORD. Use File | Save scores as | Rows |
Spreadsheet. Then use that spreadsheet as the response matrix in
HyperNiche, and open your environmental matrix as the predictor matrix.

I am confused by the part "I have tried to have 3 columns for species
scores". You could use those in a regression too (for example against
species traits), but not against the environmental matrix, because,
as you point out, the rows wouldn't match the environmental matrix.

Hope this helps,
Bruce McCune

[nina nikolic]

Dear Prof. McCune, got it now, THANKS!
Yes, I have tried to use the envelope curves instead of the scores, and I figured out it could not possibly work.