It *really* does help to read the documentation for functions. Like most
of the functions in vegan that extract information from ordinations,
ordilabel() extracts information for "axes" 1 and 2 only, by default.

Does

ordilabel(pl$arrows, choices = 1:3)

work for you?

G

Thanks for the suggestion. Unfortunately that didn't work - it returned an
error (Error in scores.default(x, choices = choices, display = display, ...)
: subscript out of bounds). The ordilabel help says "ordilabel(x, display,
labels, choices = c(1, 2)..." which seems to suggest the function might not
allow a third axis at the moment?
Cheers,
Briony


On Tue, Sep 13, 2011 at 2:53 AM, Gavin Simpson [via R] <
ml-node+s789695n3807984...@n4.nabble.com> wrote:

> On Mon, 2011-09-12 at 03:24 -0700, Briony wrote:
> > Thank you very much for the suggestion. And while I'm here, thank you for
>
> > vegan and the documentation that goes with it.
> >
> > >Function ordiplot3d uses scatterplot3d, and it returns also all
> > >scatterplot3d items, like functions xyz.converter and points3d that
> > >can be used for tuning labels.
> >
> > I tried ordilabel(pl$arrows) but the labels only seem to be in two
> > dimensions.
>
> It *really* does help to read the documentation for functions. Like most
> of the functions in vegan that extract information from ordinations,
> ordilabel() extracts information for "axes" 1 and 2 only, by default.
>
> Does
>
> ordilabel(pl$arrows, choices = 1:3)
>
> work for you?
>
> G
>
> > >With ordixyplot I can see no other choice than that you edit the
> > >function and preferably contribute your edited function to vegan
> > >(and will be credited with the function help).
> >
> > I'm not a skilled enough user of R to edit the ordixyplot function - so
> I'll
> > pass on that invitation to anyone else who reads this thread?
> >
> > Thanks again,
> > Briony
> >
> > Briony <brionynorton <at> gmail.com> writes:
> >
> > >
> > > Hi R experts,
> > >
> > > I'm looking for some help with plotting vectors from envfit in vegan,
> onto
> > > a
> > > 3d plot using ordiplot3d. So far I have
> > >
> > > data.mds <- metaMDS(data, k=3,trace = FALSE)
> > > vect_data<-envfit(data.mds,vegdata[,3:21],choices=1:3,permu=9999)
> > > ordiplot3d(data.mds,envfit=vect_data)
> > > ordixyplot(data.mds,pch=pts,envfit=vect_data)
> > >
> > > (my data's not really called data, I thought it might be easier to
> > > communicate this way)
> > >
> > > These display the vectors as arrows, but what I would really like is
> for
> > > the
> > > arrows to be labelled, like what comes up automatically in ordirgl or
> with
> > > a
> > > 2D ordiplot.
> > >
> > > I've gone through the help and tried everything I can work out, but I
> must
> > > be missing something important, because nothing's worked so far. I
> would
> > > be
> > > happy to use ordixyplot and show a series of 2D plots, but I can't get
> > > labels on those arrows either.
> > >
> > > Any pointers in the right direction would be gratefully received.
> > > Briony
> >
> > Briony,
> >
> > There really is no way to do this automatically, but if someone fixes the
>
> > functions, we are happy to incorporate those changes in vegan.
> >
> > You may be able to achieve something like that with ordiplot3d, but I am
> > not sure it looks completely satisfactory. Function ordiplot3d returns
> > invisibly the plotting object which contains, among other items. the
> > coordinates of arrow heads in the  flattened graph. So this could work:
> >
> > pl <- ordiplot3d(data.mds,envfit=vect_data)
> > ordilabel(pl$arrows)
> >
> > Function ordiplot3d uses scatterplot3d, and it returns also all
> > scatterplot3d items, like functions xyz.converter and points3d that
> > can be used for tuning labels.
> >
> > With ordixyplot I can see no other choice than that you edit the
> > function and preferably contribute your edited function to vegan
> > (and will be credited with the function help).
> >
> > Cheers, Jari Oksanen
> >
> > ______________________________________________
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> > PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
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> >
> > --
> > View this message in context:
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> > ______________________________________________
> > [hidden email] 
> > <http://user/SendEmail.jtp?type=node&node=3807984&i=0>mailing list
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> > PLEASE do read the posting guide
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