sticRs 1.2.1

Fix issue when using stics_eval with more than one parameter

sticRs 1.2.0

optimi_stics now accepts further arguments to pass to the optimisation functions (e.g. tol for the convergence tolerance)

sticRs 1.1.2

• optimi_stics now can restart automatically with new start values if the optimization process returns an error (e.g. singular matrix)
• Add possibility to use integer parameter type in optimi_stics

sticRs

• Fix several bugs in parameter optimization
• Best optimization is now returned by optimi_stics instead of the last one
• Add tests for optimization -> parameters min/max/start values

Parameter optimization

The version 1.1.0 add parameter optimization using optimi_stics which is adapted for intercrop simulations. The methods follow the one used in OptimiSTICS (Wallach et al., 2011).

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References:

Wallach, D., Buis, S., Lecharpentier, P., Bourges, J., Clastre, P., Launay, M., … Justes, E. (2011). A package of parameter estimation methods and implementation for the STICS crop-soil model. Environmental Modelling & Software, 26(4), 386–394. doi:10.1016/j.envsoft.2010.09.004

Breaking changes for developers : set_* and read_param now uses exact match

Add exact match to set_* and read_param to avoid issue when using higher level functions such as stics_eval with similar parameter names (e.g. P_hauteur_threshold and P_hauteur_threshold_2)

Stable version of sticRs

The sticRs package is ready for a first release: all main helping functions are included, widely tested and improved.