Summarize results of model run.
Details
Summarize results for each time step. The summary argument
allows to specify which summary statistics are used for each cell. The selected
statistics are used by aggregate and must return a single value.
If what='seafloor', the i) bg_biomass, ii) ag_biomass, iii) nutrients_pool,
and iv) detritus_pool are returned. If what='fishpop', the i) length,
ii) weight, iii) died_consumption, and iv) died_background are returned.
