Get Retained Catch
get_retained_catch.Rd
Get retained catch from fish ticket data
Arguments
- ft_data
NULL. Fish ticket data with fields 'crab_year', 'fishery', 'effort' and whatever variables are specified in by.
- by
NULL. Vector of column names other than crab year, fishery to use as a grouping variable. Must by present in ft_data.
- units
NULL. Unit of measurement, "t" or "lb". Default = "t".