Calculate "true" monthly index for a species

This function calculates the monthly index for a species by summing the values across all ages by month.

Usage

calc_truth_index_monthly(truth_monthly)

Arguments

truth_monthly

A tibble containing the monthly "truth" data for a species. Returned from calc_truth_monthly().

Value

A tibble containing the monthly index (e.g., biomass and catch) for the specified species

Examples

data(ewe_ecosim_base_nwatlantic)
data <- ewe_ecosim_base_nwatlantic
truth_index_monthly <- ecosystemom:::calc_truth_monthly(
  data,
  species_name = "menhaden",
  truth_type = "biomass"
) |>
  ecosystemom:::calc_truth_index_monthly()