Re: [R-sig-eco] Intepreting a plot from a "constrained" NMDS

2008-12-07 Thread Jari Oksanen
On 8 Dec 2008, at 2:53, stephen sefick wrote: A way that may work is use the axis scores as y in a regression- this seems like it would let you interpret how the communities are distributed in species space. Just a thought NEVER do this! The rotation is not determined in NMDS. If you rotate

Re: [R-sig-eco] Intepreting a plot from a "constrained" NMDS

2008-12-07 Thread tyler
Manuel Spínola <[EMAIL PROTECTED]> writes: > Is there any reference or document on how to interpret a "constrained" > non-metrical multidimensional scaling using ecological data? The vegan vignette includes a worked example. > By "constrained" I mean after fitting environmental covariables, > u

Re: [R-sig-eco] Intepreting a plot from a "constrained" NMDS

2008-12-07 Thread Salvador Sánchez-Colón
Well, I guess you can have a look at Data Analysis in Community and Landscape Ecology. Edited by R.H.G. Jongman, C.J.F. ter Braak, and O.F.R. van Tongeren, 1995, Cambridge University Press, 299 pages. I sure hope it helps. Un abrazo, Salvador Salvador Sánchez-Colón, Consultoría Ambiental y

Re: [R-sig-eco] Intepreting a plot from a "constrained" NMDS

2008-12-07 Thread stephen sefick
A way that may work is use the axis scores as y in a regression- this seems like it would let you interpret how the communities are distributed in species space. Just a thought Stephen Sefick On Sat, Dec 6, 2008 at 11:58 AM, Manuel Spínola <[EMAIL PROTECTED]> wrote: > Dear list members, > > Is t

[R-sig-eco] Intepreting a plot from a "constrained" NMDS

2008-12-07 Thread Manuel Spínola
Dear list members, Is there any reference or document on how to interpret a "constrained" non-metrical multidimensional scaling using ecological data? By "constrained" I mean after fitting environmental covariables, using, for example, the "envfit" function in the vegan package. Is it possib