R help - May 2020 - Convex hulls after nMDS or PCoA

Dear all. I need to build convex hulls around groups of points of an
ordination (nMDS or PCoA). The groups were independently established with
cluster analysis. I have learnt to plot convex hulls but would need to
create every of the 21 groups independently. Do you know how could I just
add the hulls to the ordination plot in an easier way?
Thank you very much,
Fernando.

-- 

*Dr. Fernando M. Archuby*
CONICET-UNLP
Tel?fono Personal: +54-221-15-6129667.
farchuby at gmail.com
paleobiologia at gmail.com

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Hi,

I use a modified version of dbscan::hullplot() but https://rseek.org
turns up a bunch of possibilities.

Sarah

On Tue, May 12, 2020 at 2:11 AM Fernando Archuby <farchuby at gmail.com>
wrote:
>
> Dear all. I need to build convex hulls around groups of points of an
> ordination (nMDS or PCoA). The groups were independently established with
> cluster analysis. I have learnt to plot convex hulls but would need to
> create every of the 21 groups independently. Do you know how could I just
> add the hulls to the ordination plot in an easier way?
> Thank you very much,
> Fernando.
>
> --

-- 
Sarah Goslee (she/her)
http://www.numberwright.com