On Mon, 2013-06-24 at 19:33 +0800, Suparna Mitra wrote:
> H
> ello R-experts,
> I want to do ordination plots using vegan metaMDS.
> I have a where many cells have zero values.
>
> I am having two different kind of errors for these two data...
> Error 1
> > ord1 <- metaMDS(
> X
> ="bray")
Th
Hi,
On Mon, Jun 24, 2013 at 12:04 PM, Suparna Mitra
wrote:
> Dear Sarah,
> Thanks for your reply. But I don't have any site where all the species are
> 0.
Well, that's what this says:
> 1: In distfun(comm, method = distance, ...) :
> you have empty rows: their dissimilarities may be meaningl
Dear Sarah,
Thanks for your reply. But I don't have any site where all the species
are 0. Is there anyway to calculate the dissimilarity between sites where
it computes only the non-zero species values. Excluding all the zero event
will result a big loss in species data. I don't want to delete th
Hi,
What do you expect the dissimilarity between a site with no species
and a site with some species to be?
If you want to use Bray-Curtis dissimilarity, you need to drop the
sites with no species, as the error message suggests.
But if you can answer my first question, you may be able to select
H
ello R-experts,
I want to do ordination plots using vegan metaMDS.
I have a where many cells have zero values.
Data structure:
X[1:10,1:14]
Height.1 Height.2 Height.3 Height.4 Height.5 Height.6 Height.7
Height.8 Height.9 Height.10 Height.11 Height.12 Height.13
D30I1A 460
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