top_n_focals

Generate a data.frame containing the cell indices of the focal
cells with the <code>n</code> highest values. Additionally, include columns for
the coordinates <code>(xy)</code> corresponding to the center of each cell.

internal

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

top_n_focals function

<dl><dt>focal</dt>
<dd>focal as output from <code><a href="/link/terra%3A%3Afocal()?package=spatialrisk&version=0.8.0" data-mini-rdoc="spatialrisk::terra::focal()">terra::focal()</a></code>.</dd>
<dt>n</dt>
<dd>positive integer value greater or equal to 1.</dd></dl>

Arguments

Author

Identify the focal indices with the highest values — top_n_focals

<dl>

<dt>focal</dt>
<dd>focal as output from <code><a href='https://rdrr.io/pkg/terra/man/focal.html'>terra::focal()</a></code>.</dd>


<dt>n</dt>
<dd>positive integer value greater or equal to 1.</dd>

</dl>

top_n_focals: Identify the focal indices with the highest values

Description

Usage

Arguments

Author