simulate_SPM: simulate_SPM

In Craig44/stockassessmenthelper: Package to help plot stock assessment models and functionality

simulate_SPM

Description

simulate a surplus production model, maybe fletchers?

Usage

simulate_SPM(
  theta,
  r,
  m,
  K,
  exploitation,
  obs_cv,
  catchability,
  proc_std,
  proj_years,
  proj_u,
  process_error = NULL
)

Arguments

theta	<real> starting exploited biomass
r	<real> intrinsic growth parameter.
m	<real> Shape parameter for the surplus production function
K	<real> carrying capacity parameter.
exploitation	<vector> Exploitation, defines number of years (length = n_t - 1), so if you have a period of no catches set values of 0
obs_cv	<vector> CV's (for each year) for simulated observations
catchability	<vector> a scalar to generate the relative index observation
proc_std	(optional) time specific time deviations (epsilon_t,p) for each time step
proj_years	int number of projection years
proj_u	vector<proj_years> (length 1 or proj_years)
process_error	<vector> CV's (for each year) for simulated observations

Value

Returns a list of model quantiteis and observations that can be used as an operating model

Craig44/stockassessmenthelper documentation built on April 14, 2023, 10:57 a.m.