On Mon, 2010-10-11 at 23:42 +1100, Nevil Amos wrote:
> I am using cascaple() in vegan, is it permissible to have more than
> one conditioning variable thus
> capscale(DIST~varaible1+variable2+Conditon(varaible3+variable4),
> data=mydata)
Yes. Have you tried it and had problems doing it? Or is this just a
request for clarification?
It does work:
> data(varespec)
> capscale(varespec ~ Ca + Condition(pH + P), varechem)
Call: capscale(formula = varespec ~ Ca + Condition(pH + P), data =
varechem)
Inertia Rank
Total 1826
Conditional 428 2
Constrained 130 1
Unconstrained 1268 20
Inertia is mean squared Euclidean distance
Eigenvalues for constrained axes:
CAP1
130.0
Eigenvalues for unconstrained axes:
MDS1 MDS2 MDS3 MDS4 MDS5 MDS6 MDS7 MDS8
739.77 226.54 89.04 70.61 36.72 30.47 24.77 18.64
(Showed only 8 of all 20 unconstrained eigenvalues)
HTH
G
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Dr. Gavin Simpson [t] +44 (0)20 7679 0522
ECRC, UCL Geography, [f] +44 (0)20 7679 0565
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