.to_grid

Convert from geographic coordinates in a given projection system to the
relative position in rows and columns of a grid.

Simulates demic diffusion building on models previously developed
for the expansion of Neolithic and other food-producing economies during
the Holocene (Fort et al. (2012) <doi:10.7183/0002-7316.77.2.203>, Souza et al.
(2021) <doi:10.1098/rsif.2021.0499>). Growth and emigration are modelled as
density-dependent processes using logistic growth and an asymptotic threshold
model. Environmental and terrain layers, which can change over time, affect
carrying capacity, growth and mobility. Multiple centres of origin with
their respective starting times can be specified.

Jonas Gregorio de Souza

dispeRse

Simulation of Demic Diffusion with Environmental Constraints

.to_grid function

<dl><dt>coords</dt>
<dd>A SpatialPointsDataFrame. Must contain a column dates with the
start date of the dispersal from each point.</dd>
<dt>grid</dt>
<dd>A Raster*. The coordinates will be converted to this grid.</dd></dl>

Arguments

Convert from geographic coordinates in a given projection system to the
relative position in rows and columns of a grid. — .to_grid

<dl>

<dt>coords</dt>
<dd>A SpatialPointsDataFrame. Must contain a column dates with the
start date of the dispersal from each point.</dd>


<dt>grid</dt>
<dd>A Raster*. The coordinates will be converted to this grid.</dd>

</dl>

.to_grid: Convert from geographic coordinates in a given projection system to the relative position in rows and columns of a grid.

Description

Usage

Value

Arguments