<Thomas.Rousseaubeaumier <at> uqtr.ca> writes: > > Hi Guys, > > First, English is not my native language so sorry if the question is > too difficult to understand. I can rephrase it if necessary. >
> I noticed the following code to explain as clearly as possible the > problems encountered. > > I am not able to add " species scores " from RDA results in 3D plot > like i can in 2D plot. > > With the code i used , i get errors like ; > > ERROR dans t$sites : $ operator is invalid for atomic vectors, > > Erreur dans match.arg (display, items) : 'arg' should be one of > xyz.convert, points3d, plane3d, box3d, points, arrows > > I saw that I can use other functions, but it is impossible to extract > the 3D scores ( and add species to 3d plot ), Other fonctions works > but, add elements in a 2D space. > > How can I add the "species scores" (sites and arrows are added > correctly) to the 3D plot as with the 2D plot. > Thomas, Function ordiplot3d() can only add one kind of scores (and I have no plans of changing this, but contributions are welcome). Adding species scores as text is possible but needs a bit work. One of the items you received from the plotting was xyz.convert (see your error message above). This is a function that changes 3D coordinates onto your plotting plane. You may proceed like this: sp <- scores(ENVIESRDA, choices=1:3, display="species") text(pl$xyz.convert(sp), rownames(sp)) HTH, Jari Oksanen ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
