format_ppp

This function is a wrapper around the <code>spatstat.geom::ppp()</code> function and
it is used to transform STATS19 data into a ppp format.

Tools to help download, process and analyse the UK road collision data collected using the
'STATS19' form. The datasets are provided as 'CSV' files with detailed road safety information about the
circumstances of car crashes and other incidents on the roads resulting in casualties in Great Britain
from 1979 to present. Tables are available on 'colissions' with the circumstances (e.g. speed limit
of road), information about 'vehicles' involved (e.g. type of vehicle), and 'casualties' (e.g. age).
The statistics relate only to events on public roads that were reported
to the police, and subsequently recorded, using the 'STATS19' collision reporting form. See
the Department for Transport website
<https://www.data.gov.uk/dataset/cb7ae6f0-4be6-4935-9277-47e5ce24a11f/road-safety-data> for more
information on these datasets.
The package is described in a paper in the Journal of Open Source Software
(Lovelace et al. 2019) <doi:10.21105/joss.01181>.
See
Gilardi et al. (2022) <doi:10.1111/rssa.12823>,
Vidal-Tortosa et al. (2021) <doi:10.1016/j.jth.2021.101291>, and
Tait et al. (2023) <doi:10.1016/j.aap.2022.106895> for examples of how the data can be used for
methodological and empirical road safety research.

Robin Lovelace

stats19

Work with Open Road Traffic Casualty Data from Great Britain

Malcolm Morgan

Layik Hama

Mark Padgham

David Ranzolin

Adam Sparks

Ivo Wengraf

RAC Foundation 

format_ppp function

<dl><dt>data</dt>
<dd>A STATS19 dataframe to be converted into ppp format.</dd>
<dt>window</dt>
<dd>A windows of observation, an object of class <code>owin()</code>. If
<code>window = NULL</code> (i.e. the default) then the function creates an approximate
bounding box covering the whole UK. It can also be used to filter only the
events occurring in a specific region of UK (see the examples of
<code>get_stats19</code>).</dd>
<dt>...</dt>
<dd>Additional parameters that should be passed to
<code>spatstat.geom::ppp()</code> function. Read the help page of that function
for a detailed description of the available parameters.</dd></dl>

Arguments

Convert STATS19 data into ppp (spatstat) format. — format_ppp

<dl>

<dt>data</dt>
<dd>A STATS19 dataframe to be converted into ppp format.</dd>


<dt>window</dt>
<dd>A windows of observation, an object of class <code>owin()</code>. If
<code>window = NULL</code> (i.e. the default) then the function creates an approximate
bounding box covering the whole UK. It can also be used to filter only the
events occurring in a specific region of UK (see the examples of
<code>get_stats19</code>).</dd>


<dt>...</dt>
<dd>Additional parameters that should be passed to
<code>spatstat.geom::ppp()</code> function. Read the help page of that function
for a detailed description of the available parameters.</dd>

</dl>

format_ppp: Convert STATS19 data into ppp (spatstat) format.

Description

Usage

Value

Arguments

See Also

Examples