plot_yield_curve: Yield curve for Shiny

In ktmurray1219/mmrefpoints: Project Marine Mammal Populations and Calculate Reference Points

Description

Yield curve for Shiny

Usage

plot_yield_curve(lh.params, z, MNPL_in, lang = "en")

Arguments

lh.params	a list of life history parameters: S0, S1plus, AgeMat, nages, lambdaMax, K1plus
z	degree of compensation. If this function is used outside the Shiny app, z is calculated from MNPL.
MNPL_in	Maximum Net Productivity Level (MNPL) defined as the greatest net annual increment in population numbers or biomass resulting from additions to the population due to reproduction and/or growth less losses due to natural mortality. If the function is used outside Shiny, it will calculate z from this value. In Shiny, only z is used for productivity.
lang	language selected by the user (character)

Value

a ggplot object showing depletion (1+ population size relative to K) vs. production. In fisheries this is a yield curve; in marine mammal management it shows where the productivity level is highest, i.e., MNPL.

Examples

plot_yield_curve(
  lh.params = list(
    S0 = 0.944, S1plus = 0.99, AgeMat = 17,
    nages = 19, lambdaMax = 1.02, K1plus = 9000
  ),
  MNPL_in = 0.5, z = NA, lang = "en"
)

ktmurray1219/mmrefpoints documentation built on Dec. 21, 2021, 8:40 a.m.