[R] NMDS using Vegan

Suparna Mitra suparna.mitra.sm at gmail.com
Thu May 16 04:16:42 CEST 2013


Dear Prof. Simpson,
Thanks a lot for your reply. Yes I know that I can change the labels
any time, but I was only worried if I am doing any mistake as default
output didn't match with the output shown in the Vegan tutorial
output.
Thanks,
Mitra


On 15 May 2013 22:43, Gavin Simpson <gavin.simpson at ucl.ac.uk> wrote:
> On Wed, 2013-05-15 at 12:06 +0800, Suparna Mitra wrote:
>> Hello R experts,
>>   I am new to Vegan and use trying to follow the tutorial to perform NMDS
>> for my data. But after performing the metaMDS, when I plotted my results
>> the default plot shows MDS1 vs MDS2. Thought according to the
>> tutorial Default ordination plot should display NMDS1vs NMDS2. Why is this
>> difference? Accourding to tutorial it says: Function metaMDS
>> is a wrapper to perform NMDS.
>> Can anybody please help me to understand this?
>> Thanks,
>> Mitra
>
> They are just labels and metaMDS **has** performed an NMDS. Not sure why
> Jari labelled these as "MDSx". If this bothers you so, add your own
> labels:
>
> require("vegan")
> data(dune)
> sol <- metaMDS(dune)
> plot(sol, xlab = "NMDS1", ylab = "NMDS2")
>
> HTH
>
> G
>
> --
> Gavin Simpson, PhD                          [t] +1 306 337 8863
> Adjunct Professor, Department of Biology    [f] +1 306 337 2410
> Institute of Environmental Change & Society [e] gavin.simpson at uregina.ca
> 523 Research and Innovation Centre          [tw] @ucfagls
> University of Regina
> Regina, SK S4S 0A2, Canada
>
>
>



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