LandR-validModulesForeword.Rmd

# LandR Validation Modules {-}

LandR 'validation modules' differ from 'data modules' in that their objective is not to obtain input data and estimate parameters to run a simulation, but rather to confront simulation outputs against observed data -- even if these modules can potentially obtain and pre-process the validation data.
At the moment, only one validation module is available, *Biomass_validationKNN*, but we expect an increment in the number of validation modules as LandR usage expands.