get_global_max_area_time: Get the time of maximum area

In xieshu95/DAISIE_new: Dynamical Assembly of Islands by Speciation, Immigration and Extinction

Description

Get the time of maximum area

Usage

get_global_max_area_time(totaltime, area_pars, island_ontogeny, sea_level)

Arguments

totaltime	Numeric defining the length of the simulation in time units.
area_pars	A named list containing area and sea level parameters as created by create_area_pars: [1]: maximum area [2]: value from 0 to 1 indicating where in the island's history the peak area is achieved [3]: sharpness of peak [4]: total island age [5]: amplitude of area fluctuation from sea level [6]: frequency of sine wave of area change from sea level [7]: angle of the slope of the island
island_ontogeny	In DAISIE_sim_time_dependent, DAISIE_ML_CS and plotting a string describing the type of island ontogeny. Can be "const", "beta" for a beta function describing area through time. String checked by is_island_ontogeny_input. In all other functions a numeric describing the type of island ontogeny. Can be 0 for constant, 1 for a beta function describing area through time. In ML functions island_ontogeny = NA assumes constant ontogeny.
sea_level	In DAISIE_sim_time_dependent and plotting a string describing the type of sea level. Can be "const" or "sine" for a sine function describing area through time. String checked by is_sea_level_input. In all other functions a numeric describing the type of sea level. Can be 0 for constant, 1 for a sine function describing area through time.

Value

Numeric with time at which area is maximum during the simulation.

Author(s)

Pedro Neves, Joshua Lambert, Shu Xie

Examples

timeval <- 1
totaltime <- 10
area_pars <- DAISIE::create_area_pars(
  max_area = 5000,
  proportional_peak_t = 0.5,
  peak_sharpness = 1,
  total_island_age = 15,
  sea_level_amplitude = 0,
  sea_level_frequency = 0,
  island_gradient_angle = 0
)
island_ontogeny <- 1
sea_level <- 0

testthat::expect_silent(
  global_max_area_time <- DAISIE:::get_global_max_area_time(
    totaltime = totaltime,
    area_pars = area_pars,
    island_ontogeny = island_ontogeny,
    sea_level = sea_level
  )
)

xieshu95/DAISIE_new documentation built on March 20, 2020, 5:31 a.m.