Re: [R] what is scaling in plot

In an ordination such as this, you have two sets of scores; i) one pertaining to the (dis)similarity of your samples in terms of species composition, and ii) one pertaining to the species and which species co-occur. You can't display both sets of information and retain the meaning of the scores on

Re: [R] what is scaling in plot

code rm(list=ls()) library(vegan) library(MASS) data(varespec) print(varespec) str(varespec) #PCA vare.pca <- rda(varespec) vare.pca plot(vare.pca) sum(apply(varespec, 2, var)) biplot(vare.pca, scaling = -1) Elaine On Sat, Aug 14, 2010 at 10:48 AM, Ben Bolker wrote: > elaine kuo gmail

Re: [R] what is scaling in plot

elaine kuo gmail.com> writes: > Pls kindly advise what scaling is in plot. > Sometime it could be negative but sometimes it might be positive > .(I guess it is the proportion between the plot and the margin) Your question is unclear. Please give more context and/or details. __

[R] what is scaling in plot

Dear List, Pls kindly advise what scaling is in plot. Sometime it could be negative but sometimes it might be positive .(I guess it is the proportion between the plot and the margin) Thanks Elaine [[alternative HTML version deleted]] __ R-hel