Dear Philipp,
I cannot see anything wrong in your approach. The only problem is that RDA may
not do very well. It is very common that the calibrated values are outside the
original range of the data and if the predictions are not very good, they can
also be unrealistic values. RDA has no idea
Hello all,
I would like to cross validate my rda() derived model with the calibrate
function (vegan package) and calculate the RMSE as value for performance
measure.
For simplicity I use the example from the predict.cca {vegan} help.
library(ade4)
library(vegan)
data(dune)
data(dune.env)
nbr