aggregate_points

Function to aggregate points within a radius.

Perform spatial analysis on network.
Implement several methods for spatial analysis on network: Network Kernel Density estimation,
building of spatial matrices based on network distance ('listw' objects from 'spdep' package), K functions estimation
for point pattern analysis on network, k nearest neighbours on network, reachable area calculation, and graph generation
References: Okabe et al (2019) <doi:10.1080/13658810802475491>;
Okabe et al (2012, ISBN:978-0470770818);Baddeley et al (2015, ISBN:9781482210200).

Jeremy Gelb

spNetwork

Spatial Analysis on Network

Philippe Apparicio

aggregate_points function

<dl><dt>points</dt>
<dd>The feature collection of points to contract (must have a weight column)</dd>
<dt>maxdist</dt>
<dd>The distance to use</dd>
<dt>weight</dt>
<dd>The name of the column to use as weight (default is "weight").
The values of the aggregated points for this column will be summed. For all
the other columns, only the max value is retained.</dd>
<dt>return_ids</dt>
<dd>A boolean (default is FALSE), if TRUE, then an index indicating
for each point the group it belongs to is returned. If FALSE, then a spatial
point features is returned with the points already aggregated.</dd></dl>

Arguments

Events aggregation — aggregate_points

<dl>

<dt>points</dt>
<dd>The feature collection of points to contract (must have a weight column)</dd>


<dt>maxdist</dt>
<dd>The distance to use</dd>


<dt>weight</dt>
<dd>The name of the column to use as weight (default is "weight").
The values of the aggregated points for this column will be summed. For all
the other columns, only the max value is retained.</dd>


<dt>return_ids</dt>
<dd>A boolean (default is FALSE), if TRUE, then an index indicating
for each point the group it belongs to is returned. If FALSE, then a spatial
point features is returned with the points already aggregated.</dd>

</dl>

aggregate_points: Events aggregation

Description

Usage

Value

Arguments

Details

Examples