EDiLD/vegan — comment on commit 1208c9c54264ed30c21dabb60caeb7151515a510
File:  line 0
By EDiLD:

I have also in mind to put hands on the prc-function since it it frequently used in ecotoxicology (also a field I am working at), for example the treatment effects asked recently on r-sig-eco, but also perhabs a extension to db-RDA?.

I cant say if mvcchart is a practible alternative to prc.

I know prc from mesocosm studies, and for them prc is reasonable (however most people look only at the first axis, why not at the distance between control and treatment in full dimensional space?).
This multivariate controlcharts (perhabs with a baseline set to the sample before treatment?) can be complementary to prc. I have to play with the function a little bit more (and first complete it), to get a deeper feeling how it behaves. Also then we should think about how to "test" this controlchart and the differnces....