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vegdist
2004 Dec 10
1
How to circumvent negative eigenvalues in the capscale function
Dear All
I am trying to do a partial canonical analysis of principal coordinates
using Bray-Curtis distances. The capscale addin to R appears to be the only
way of doing it, however, when I try and calculate a Bray-Curtis distance
matrix either using Capscale or Vegedist (capscale I understand uses
Vegedist anyway to calculate its distance matrix), R uses up all available
memory on the computer, stops and then comes back with errors regarding
negative eigenvalues.
I must admit to being a very very basic R user so this is starting to go
over my head. I tried using...