Change catch in the data so at least all combinations of fleet, season, and year, needed for catch are available. Equilibrium years are generated if there are equilibrium parameters in the control list.
change_catch(dat_list, ctl_list)A data file read in using r4ss::SS_readdat().
A control file read in using r4ss::SS_readctl().
The start and end year of the resulting data list will be based on years
with positive fishing mortality values, and
equilibrium catches will be non-zero only if
there is a equilibrium fishing mortality parameter for that fleet and season
combination.
A modified Stock Synthesis data file as a list in R.
change_f() changes the fishing mortality, \(F\), parameters
using the control file, but these \(F\) values will only be implemented
for years with corresponding entries in the Stock Synthesis data file.
Thus, this function must be implemented after change_f().