log_posterior_density

Generate log posterior predictive density from a geostatistical surface onto point data

Modern model-based geostatistics for point-referenced data. This package provides a
simple interface to run spatial machine learning models and geostatistical models
that estimate a continuous (raster) surface from point-referenced outcomes and,
optionally, a set of raster covariates. The package also includes functions to
summarize raster outcomes by (polygon) region while preserving uncertainty.

Nathaniel Henry

Model-Based Geostatistics

Benjamin Mayala

log_posterior_density function

<dl><dt>draws</dt>
<dd>(<code>matrix</code>) A predictive draw matrix, where each row corresponds to a
pixel in the <code>id_raster</code> and each column corresponds to one sampled estimate of the
outcome.</dd>
<dt>validation_data</dt>
<dd>(<code>data.frame</code>) Table containing at least the following
fields: <ul>
<li>x (<code>numeric</code>) location x position, in the same projection as <code>id_raster</code> </li>
<li>y (<code>numeric</code>) location y position, in the same projection as <code>id_raster</code> </li>
<li>indicator (<code>integer</code>) The number of events in the population </li>
<li>samplesize (<code>integer</code>) The total population, denominator for <code>indicator</code></li>
</ul></dd>
<dt>id_raster</dt>
<dd>(<a href="/link/terra%3A%3ASpatRaster?package=mbg&version=1.1.0" data-mini-rdoc="mbg::terra::SpatRaster">terra::SpatRaster</a>) Raster showing the sample study area, created
using build_id_raster.</dd>
<dt>na.rm</dt>
<dd>(<code>logical(1)</code>, default FALSE) Should NA values be omitted from the LPD
calculation?</dd></dl>

Arguments

Generate log posterior predictive density from a geostatistical surface onto point data — log_posterior_density

<dl>

<dt>draws</dt>
<dd>(<code>matrix</code>) A predictive draw matrix, where each row corresponds to a
pixel in the <code>id_raster</code> and each column corresponds to one sampled estimate of the
outcome.</dd>


<dt>validation_data</dt>
<dd>(<code>data.frame</code>) Table containing at least the following
fields: <ul>
<li>x (<code>numeric</code>) location x position, in the same projection as <code>id_raster</code> </li>
<li>y (<code>numeric</code>) location y position, in the same projection as <code>id_raster</code> </li>
<li>indicator (<code>integer</code>) The number of events in the population </li>
<li>samplesize (<code>integer</code>) The total population, denominator for <code>indicator</code></li>
</ul></dd>


<dt>id_raster</dt>
<dd>(<a href='https://rdrr.io/pkg/terra/man/SpatRaster-class.html'>terra::SpatRaster</a>) Raster showing the sample study area, created
using build_id_raster.</dd>


<dt>na.rm</dt>
<dd>(<code>logical(1)</code>, default FALSE) Should NA values be omitted from the LPD
calculation?</dd>

</dl>

log_posterior_density: Generate log posterior predictive density from a geostatistical surface onto point data

Description

Usage

Value

Arguments

Details