tasmania_raster

A raster dataset defining the grid cells of the Tasmanian study region for the
Thylacine example vignette.

A framework of interoperable R6 classes (Chang, 2020, <https://CRAN.R-project.org/package=R6>) for building ensembles of viable models via the pattern-oriented modeling (POM) approach (Grimm et al.,2005, <doi:10.1126/science.1116681>). The package includes classes for encapsulating and generating model parameters, and managing the POM workflow. The workflow includes: model setup; generating model parameters via Latin hyper-cube sampling (Iman & Conover, 1980, <doi:10.1080/03610928008827996>); running multiple sampled model simulations; collating summary results; and validating and selecting an ensemble of models that best match known patterns. By default, model validation and selection utilizes an approximate Bayesian computation (ABC) approach (Beaumont et al., 2002, <doi:10.1093/genetics/162.4.2025>), although alternative user-defined functionality could be employed. The package includes a spatially explicit demographic population model simulation engine, which incorporates default functionality for density dependence, correlated environmental stochasticity, stage-based transitions, and distance-based dispersal. The user may customize the simulator by defining functionality for translocations, harvesting, mortality, and other processes, as well as defining the sequence order for the simulator processes. The framework could also be adapted for use with other model simulators by utilizing its extendable (inheritable) base classes.

July Pilowsky

poems

Pattern-Oriented Ensemble Modeling System

Sean Haythorne

Damien Fordham

Stuart Brown

Jessie Buettel

Barry Brook

tasmania_raster function

A raster::RasterLayer object:<dl>
<dt>dimensions</dt>
<dd>32 rows by 40 columns grid</dd><dt>resolution</dt>
<dd>0.1 by 0.1 degree grid cells</dd><dt>extent</dt>
<dd>longitude 144.5 to 148.5 degrees; latitude -43.8025 to -40.6025 degrees</dd><dt>CRS</dt>
<dd>WGS84 longitude-latitude</dd><dt>values</dt>
<dd>region defined by 795 cells with value of 1 (surrounded by non-region <code>NA</code> values)</dd>
</dl>

Format

Thylacine vignette Tasmania raster — tasmania_raster

A raster::RasterLayer object:<dl>
<dt>dimensions</dt>
<dd>32 rows by 40 columns grid</dd>

<dt>resolution</dt>
<dd>0.1 by 0.1 degree grid cells</dd>

<dt>extent</dt>
<dd>longitude 144.5 to 148.5 degrees; latitude -43.8025 to -40.6025 degrees</dd>

<dt>CRS</dt>
<dd>WGS84 longitude-latitude</dd>

<dt>values</dt>
<dd>region defined by 795 cells with value of 1 (surrounded by non-region <code>NA</code> values)</dd>


</dl>

tasmania_raster: Thylacine vignette Tasmania raster

Description

Arguments

Format

Examples