dear alida,

legend() should help to get the legends, just ask for help(legend), it“s 
pretty easy.

then for the variance explained: with an NMS the only measure of fit you 
get is the stress value, there isn“t anything like a percentage of 
explained variance. you may want to regard the stress value as the 
percentage of distances among points that is not reproduced by the 
ordination. Though that“s a bit of a sloppy way to see it.

keep struggling, it“s worth it :-)

cheers, gabriel



On 15/04/2010 22:19, Alida Mercado wrote:
> Hello,
>
> I'm doing an NMS, and have decided to try out vegan and do everything
> in R.  In this attempt, I haven't been able to figure out how to get
> the variance explained by each axis, nor the total variation
> explained by the ordination.  the other issue I have is how to get a
> legend, because I want to represent different sites in the
> ordination, but the sites are grouped by season in which they were
> sampled in order to look at differences in seasonality.  Therefore I
> would like to have a legend that represent each season by different
> symbols.  I've decided to start using R, so there are still some
> issues I have to figure out and learn the commands and functions to
> do what I need.
>
> If you have any suggestions, please let me know,
>
> Thanks in advance,
> Alida
>
>
> ~~~
> Alida Mercado Cįrdenas
>
> Ph.D. Candidate, Entomology-Neotropical Environment Option
> McGill University&  Smithsonian Tropical Research Institute
>
> http://weevils-n-dreams.blogspot.com/
> ~~~
>
>
> 	[[alternative HTML version deleted]]
>
>    
>
>
> _______________________________________________
> R-sig-ecology mailing list
> R-sig-ecology@r-project.org
> https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
>    


	[[alternative HTML version deleted]]

