Sincere thanks to Drs. Oksanen, Simpson, and Singer for their thoughtful
responses.
I'm looking forward to using "ordisurf" to see whether the one dimensional
trend in my dataset holds for two dimensions . Has anyone examined this
question using simulated data? I took a *very* quick look on BIOSIS
hmmm... I think Gavin´s approach definitely has more power, though I
don´t quite see why the original idea should not work. Orthogonality is
not an implicit feature of an NMDS but it´s also not "prevented"...
First, I think quite often NMDS still reproduces/extracts orthogonal
features of a data
On Fri, 2011-02-18 at 10:41 -0800, Erik Frenzel wrote:
> Hello all,
> I'm interested in adapting a technique from a recent paper
>
> Harrison, S., E. I. Damschen and J. B. Grace 2010. Ecological
> contingency in the effects of climate change on forest herbs.
> Proceedings of the National Academy o
On 9/03/11 23:58 PM, "Erik Frenzel" wrote:
> Hello again listers,
> I've had no problems rotating metaMDS ordindation with 2 axes to a vector of
> interest. Unfortunately, for my particular dataset stress is > 0.20 for 2
> axes. I'm wondering if it's possible to rotate the first axis for an
> or
Hello again listers,
I've had no problems rotating metaMDS ordindation with 2 axes to a vector of
interest. Unfortunately, for my particular dataset stress is > 0.20 for 2
axes. I'm wondering if it's possible to rotate the first axis for an
ordination with 3 axes somehow, maybe by specifying a 2 b
Hello all,
I'm interested in adapting a technique from a recent paper
Harrison, S., E. I. Damschen and J. B. Grace 2010. Ecological
contingency in the effects of climate change on forest herbs.
Proceedings of the National Academy of Sciences (USA), 107:
19362-19367.
In which a plot's change in NM
