plot.hotspot

Visualise objects returned by <code>concentration_hotspot()</code>.
The default plot shows hotspot
centres, fixed-radius buffers, and the contributing points. For terra-based
results, diagnostic raster layers can also be plotted.

Provides methods for spatial concentration and radius-based risk
calculations. The package focuses on efficient determination of the sum of
observations within a given radius, identifying local concentration
hotspots, and aggregating point data to polygon geometries. These methods
are useful for applications such as insurance, urban analytics,
environmental exposure analysis, and other spatial point pattern workflows.
The underlying maximum covering problem is described by Church (1974)
<doi:10.1007/BF01942293>.

Martin Haringa

spatialrisk

Spatial Concentration and Radius-Based Risk Calculations

plot.hotspot function

<dl><dt>x</dt>
<dd>An object of class <code>hotspot</code>.</dd>
<dt>type</dt>
<dd>Plot type. <code>"concentration"</code> shows hotspot buffers and
contributing points and works for all hotspot search methods.
<code>"focal"</code>, <code>"rasterized"</code>, and <code>"updated_focal"</code> are
diagnostic terra layers and are only available for terra-based results.</dd>
<dt>color1</dt>
<dd>Optional colour or colours for hotspot buffers and points. If
<code>NULL</code>, colours are chosen with <code><a href="/link/grDevices%3A%3Ahcl.colors()?package=spatialrisk&version=0.8.0" data-mini-rdoc="spatialrisk::grDevices::hcl.colors()">grDevices::hcl.colors()</a></code>.</dd>
<dt>max.rad</dt>
<dd>Maximum point radius passed to <code>mapview::mapview()</code>.
Default is <code>20</code>.</dd>
<dt>...</dt>
<dd>Additional arguments passed to <code>mapview::mapview()</code> for the
contributing point layer when <code>type = "concentration"</code>, or to the
raster mapview call for diagnostic raster layers.</dd></dl>

Arguments

Plot concentration hotspot results — plot.hotspot

<dl>

<dt>x</dt>
<dd>An object of class <code>hotspot</code>.</dd>


<dt>type</dt>
<dd>Plot type. <code>"concentration"</code> shows hotspot buffers and
contributing points and works for all hotspot search methods.
<code>"focal"</code>, <code>"rasterized"</code>, and <code>"updated_focal"</code> are
diagnostic terra layers and are only available for terra-based results.</dd>


<dt>color1</dt>
<dd>Optional colour or colours for hotspot buffers and points. If
<code>NULL</code>, colours are chosen with <code><a href='https://rdrr.io/r/grDevices/palettes.html'>grDevices::hcl.colors()</a></code>.</dd>


<dt>max.rad</dt>
<dd>Maximum point radius passed to <code>mapview::mapview()</code>.
Default is <code>20</code>.</dd>


<dt>...</dt>
<dd>Additional arguments passed to <code>mapview::mapview()</code> for the
contributing point layer when <code>type = "concentration"</code>, or to the
raster mapview call for diagnostic raster layers.</dd>

</dl>

plot.hotspot: Plot concentration hotspot results

Description

Usage

Value

Arguments

Details