The text in the LandR Manual (Biomass_speciesParameter.Rmd) was updated (CBoisvenue and CBarros) but the scripts still has a lot of GAMM-method objects. A script clean-up, that follows (and makes clear!) the new method is needed. The new method fits the PSP data by focal species to 3 non-linear forms (Chapman-Richards, Gompertz and Logistic), selects the best of the 3 by looking at their AIC, and uses that best-fit model to find the best match in the library of curves created in the Biomass_speciesFactorial module.
The text in the LandR Manual (Biomass_speciesParameter.Rmd) was updated (CBoisvenue and CBarros) but the scripts still has a lot of GAMM-method objects. A script clean-up, that follows (and makes clear!) the new method is needed. The new method fits the PSP data by focal species to 3 non-linear forms (Chapman-Richards, Gompertz and Logistic), selects the best of the 3 by looking at their AIC, and uses that best-fit model to find the best match in the library of curves created in the Biomass_speciesFactorial module.