[R] metaMDS

[Gavin Simpson]

On Fri, 2011-09-23 at 12:43 -0500, Jean V Adams wrote:
> Lineth Contreras wrote on 09/23/2011 11:35:10 AM:
> > 
> > Hello R-user community,
> > 
> > I am applying the function metaMDS. However, I would like to know if 
> there
> > is any option to export the data I got from the axis as a data frame.
> > 
> > I have tried as.data.frame.list but is not working.  Any suggestion?
> > 
> > Thank you in advance for your help,
> > 
> > Lineth
> 
> 
> When you say "the data I got from the axis" do you mean the coordinates 
> contained in the $points of the resulting object?  If so, something like 
> this should work (using the example provide in ?metaMDS):

You would be better off with the scores() method for metaMDS objects:

data(dune)
sol <- metaMDS(dune)
scrs <- scores(sol)

`scrs` is a matrix:

> class(scrs)
[1] "matrix"

which can be exported via say `write.csv()`:

write.csv(scrs, "filenames.csv")

If you want a data frame in R, then

SCRS <- as.data.frame(scrs)

will work, but there is little reason to convert to a data frame just to
export it out of R.

HTH

G

> data(dune)
> library(MASS)
> sol <- metaMDS(dune)
> df <- as.data.frame(sol$points)
> 
> Jean
> 	[[alternative HTML version deleted]]
> 
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