pbd_numspec_median_checked: Calcates the median number of species under protracted...

In richelbilderbeek/becosys: Unified Interface To Phylogenetics Models Of Speciation

Description

Calcates the median number of species under protracted birth-death model of diversification. This is a checked version with a more explicit interface than pbd_numspec_median.

Usage

pbd_numspec_median_checked(erg, eri, scr, sir, crown_age)

Arguments

erg	extinction rate of a good species
eri	extinction rate of an incipient species
scr	speciation completion rate
sir	speciation initiation rate. This function assumes the speciation initiation rates of good and incipient species are equal.
crown_age	the crown age

Value

The median number of representative species

Author(s)

Richel J.C. Bilderbeek

See Also

pbd_numspec_median provides for setting a time-dependence in the parameters and/or specify a stem age. pbd_numspec_mean_checked calculates the mean number of species.

Examples

  median_n_species <- pbd_numspec_median_checked(
    erg = 1.2,
    eri = 2.3,
    scr = 3.4,
    sir = 4.5,
    crown_age = 6.7
  )
  median_n_species_expected <- 99408712
  testthat::expect_equal(median_n_species, median_n_species_expected)

richelbilderbeek/becosys documentation built on Oct. 19, 2020, 9:20 a.m.