[R-sig-eco] residuals in RDA, and test for spatial autocorrelation

[amommendes]

Hi Tracy,

You can try this:

require (vegan)

data(mite)
data(mite.env)
data(mite.xy)

mod<- rda (mite~., data=mite.env)
res<-residuals(mod)

require (spacemakeR)

vario<-variogmultiv(res, mite.xy)
plot(vario$d, vario$var, ty='b',pch=20,xlab="Distance", ylab="C(distance)")


But, I'm not sure. Maybe to implement spatial variables in the model through
spatial eigenfuncion analysis (e.g., db-MEM, MEM) also could be very useful.

Hope this helps.

Best



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