periodic_cov

a numeric object containing pairwise distances between the centroids of the fields

range (half-period of oscillations)

range

Periodic function used to compute the variance-covariance matrix of the fields of the landscape.

A stochastic, spatially-explicit, demo-genetic model simulating the spread and evolution
of a plant pathogen in a heterogeneous landscape to assess resistance deployment strategies.
It is based on a spatial geometry for describing the landscape and allocation of different cultivars,
a dispersal kernel for the dissemination of the pathogen, and a SEIR
('Susceptible-Exposed-Infectious-Removed’) structure with a discrete time step.
It provides a useful tool to assess the performance of a wide range of deployment options with
respect to their epidemiological, evolutionary and economic outcomes.
Loup Rimbaud, Julien Papaïx, Jean-François Rey, Luke G Barrett,
Peter H Thrall (2018) <doi:10.1371/journal.pcbi.1006067>.

Jean-Francois Rey

landsepi

Landscape Epidemiology and Evolution

Loup Rimbaud

Julien Papaix

Jean-François Rey

Jean-Loup Gaussen

periodic_cov function

<dl><dt>d</dt>
<dd>a numeric object containing pairwise distances between the centroids of the fields</dd>
<dt>range</dt>
<dd>range (half-period of oscillations)</dd>
<dt>phi</dt>
<dd>amplitude of the oscillations</dd></dl>

Arguments

Periodic covariance function — periodic_cov

<dl>

<dt>d</dt>
<dd>a numeric object containing pairwise distances between the centroids of the fields</dd>


<dt>range</dt>
<dd>range (half-period of oscillations)</dd>


<dt>phi</dt>
<dd>amplitude of the oscillations</dd>

</dl>

periodic_cov: Periodic covariance function

Description

Usage

Value

Arguments

Details

Examples