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[Experimental] Given a MizerParams object params for which yield observations are available for at least some species via the yield_observed column in the species_params data frame, this function returns an updated MizerParams object which is rescaled with scaleModel() so that the total yield in the model agrees with the total observed yield.





A MizerParams object


A MizerParams object


After using this function the total yield in the model will match the total observed yield, summed over all species. However the yields of the individual species will not match observations yet, with some species having yields that are too high and others too low. So after this function you may want to use matchYields().

If you have observations of species biomasses instead of yields, you can use calibrateBiomass() instead of this function.


params <- NS_params
species_params(params)$yield_observed <-
    c(0.8, 61, 12, 35, 1.6, 20, 10, 7.6, 135, 60, 30, 78)
gear_params(params)$catchability <-
    c(1.3, 0.065, 0.31, 0.18, 0.98, 0.24, 0.37, 0.46, 0.18, 0.30, 0.27, 0.39)
params2 <- calibrateYield(params)
#> The following species are not being fished in your model and will not be included in the plot: Sprat, Sandeel, N.pout.