Introduced a new function based on a more robust function that the traditional Gaussian based function. The function (Likelihood) is a switch under the technical module. the The function is named Sivias function and can be written as:
Where R is the normalized difference between simulated (sim) and measured values (meas), so R equals
The Esys value is also new in the model compared to previous versions and considered as a parameter in the table Scaling of observed Variables. Note that is estimated as before based on the smallest value between a relative error estimate and a minimum error as assigned for each validation variable in the model.