Re: [R-sig-eco] vegan: envfit (vectorfit)

2009-09-15 Thread Gavin Simpson
On Tue, 2009-09-15 at 17:02 +0200, gabriel singer wrote: Hi vegan-users and programmers, Can anybody tell me how the function vectorfit (envfit) computes arrow lengths (as fits of a metric variable onto an ordination) exactly? I understand the scaling bit in the end, but have troubles to

Re: [R-sig-eco] vegan: envfit (vectorfit)

2009-09-15 Thread gabriel singer
gavin and jari, thanks, all makes sense I have to state that remembering the discussion we had some weeks ago about fitting underlying (or environmental) variables to a MDS ordination, that using vectorfit for this purpose indeed would make sense for me, too. As long as before choosing