pems

<p>Data set of traffic speed observations on highways in the city of San Jose,
California.</p>

datasets

Facilitates creation and manipulation of metric graphs, such as street or river networks. Further facilitates operations and visualizations of data on metric graphs, and the creation of a large class of random fields and stochastic partial differential equations on such spaces. These random fields can be used for simulation, prediction and inference. In particular, linear mixed effects models including random field components can be fitted to data based on computationally efficient sparse matrix representations. Interfaces to the R packages 'INLA' and 'inlabru' are also provided, which facilitate working with Bayesian statistical models on metric graphs. The main references for the methods are Bolin, Simas and Wallin (2024) <doi:10.3150/23-BEJ1647>, Bolin, Kovacs, Kumar and Simas (2023) <doi:10.1090/mcom/3929> and Bolin, Simas and Wallin (2023) <doi:10.48550/arXiv.2304.03190> and <doi:10.48550/arXiv.2304.10372>.

David Bolin

MetricGraph

Random Fields on Metric Graphs

Alexandre Simas

Jonas Wallin

pems function


<div class="section" id="pems">
<h3><code>pems</code></h3><p></p><p>
</p><p>A list with two elements:</p><dl>
<dt>edges</dt>
<dd><p>A <code>list</code> object containing the coordinates of the road segments.</p></dd><p></p><p><dt>data</dt>
<dd><p>Locations of the observations on the road segments as a
<code>data.frame</code> with 325 rows and 3 columns. The first column indicates the edge
number, the second column indicates the distance on edge of the position,
and the third column indicates the average speed observed.</p></dd></p><p>
</p></dl><p></p><p></p></div>


Format

Traffic speed data from San Jose, California — pems


<div class='section' id='pems'>
<h3><code>pems</code></h3>


<p>A list with two elements:</p><dl>
<dt>edges</dt>
<dd><p>A <code>list</code> object containing the coordinates of the road segments.</p></dd>

<dt>data</dt>
<dd><p>Locations of the observations on the road segments as a
<code>data.frame</code> with 325 rows and 3 columns. The first column indicates the edge
number, the second column indicates the distance on edge of the position,
and the third column indicates the average speed observed.</p></dd>


</dl>

</div>


pems: Traffic speed data from San Jose, California

Description

Usage

Arguments

Format

`pems`

References