calc_Abeta

Calculates the area at a point in time from a beta function

internal

Simulates and computes the (maximum) likelihood of a dynamical
model of island biota assembly through speciation, immigration and
extinction. See Valente et al. (2015) <doi:10.1111/ele.12461>.

Rampal Etienne

DAISIE

Dynamical Assembly of Islands by Speciation, Immigration and
Extinction

Rampal S. Etienne

Luis Valente

Albert B. Phillimore

Bart Haegeman

Joshua W. Lambert

Pedro Santos Neves

Shu Xie

Richèl J.C. Bilderbeek

Hanno Hildenbrandt

Torsten Hauffe

Giovanni Laudanno

Nadiah Kristensen

Raphael Scherrer

calc_Abeta function

<dl><dt>proptime</dt>
<dd>A numeric from 0 to 1. The proportion of time that has
elapsed in the simulation, in relation to the total island age (NB: not
the simulation time, but island age).</dd>
<dt>proptime_max</dt>
<dd>A numeric from 0 to 1. The same as
<code>proportional_peak_t</code>. Indicates, in proportion to the total island
age when the ontogeny peak should occur (i.e. 0.5 means a peak halfway in
time).</dd>
<dt>peak</dt>
<dd>A numeric value specifying the peakiness (or shaprness) of the
ontogeny curve. Higher values imply peakier ontogeny. This value is
internally calculated by <code>calc_peak()</code> given the area at the
present and the <code>area_pars</code>.</dd>
<dt>Amax</dt>
<dd>A numeric value for maximum island area during the simulation.</dd></dl>

Arguments

Joshua Lambert, Pedro Neves, Shu Xie

Author

Calculates the area at a point in time from a beta function — calc_Abeta

<dl>

<dt>proptime</dt>
<dd>A numeric from 0 to 1. The proportion of time that has
elapsed in the simulation, in relation to the total island age (NB: not
the simulation time, but island age).</dd>


<dt>proptime_max</dt>
<dd>A numeric from 0 to 1. The same as
<code>proportional_peak_t</code>. Indicates, in proportion to the total island
age when the ontogeny peak should occur (i.e. 0.5 means a peak halfway in
time).</dd>


<dt>peak</dt>
<dd>A numeric value specifying the peakiness (or shaprness) of the
ontogeny curve. Higher values imply peakier ontogeny. This value is
internally calculated by <code>calc_peak()</code> given the area at the
present and the <code>area_pars</code>.</dd>


<dt>Amax</dt>
<dd>A numeric value for maximum island area during the simulation.</dd>

</dl>

Calculates the area at a point in time from a beta function

calc_Abeta: Calculates the area at a point in time from a beta function

Description

Usage

Value

Arguments

Author