sim.ortho.proj

Orthogonal projection of simulated "expected" cases onto road network.

datasets

Amends errors, augments data and aids analysis of John Snow's map
of the 1854 London cholera outbreak. The original data come from
Rusty Dodson and Waldo Tobler's 1992 digitization of Snow's map. Those
data, <http://www.ncgia.ucsb.edu/pubs/snow/snow.html>, are no longer
available. However, they are preserved in the 'HistData' package,
<https://CRAN.R-project.org/package=HistData>.

Peter Li 

cholera

Amend, Augment and Aid Analysis of John Snow's Cholera Data

sim.ortho.proj function

A data frame with 5 variable that records the position of the orthogonal projection of the 4993 cases onto the network of roads. Excluding isolates (Pump 2 at Adam and Eve Court; Falconberg Court and Falconberg Mews), there are 4972 cases.<dl class="dl-horizontal">
 <dt><code>road.segment</code></dt><dd>"address" road segment</dd>
 <dt><code>x.proj</code></dt><dd>x-coordinate</dd>
 <dt><code>y.proj</code></dt><dd>y-coordinate</dd>
 <dt><code>ortho.dist</code></dt><dd>orthogonal distance to home road segment</dd>
 <dt><code>case</code></dt><dd>numeric case ID</dd>
 </dl>

Format

<code><a rd-options="" href="/link/simulateFatalities?package=cholera&version=0.2.1" data-mini-rdoc="cholera::simulateFatalities">simulateFatalities</a></code> documents the code for these data.

Notes

Orthogonal projection of simulated "expected" cases onto road network. — sim.ortho.proj

A data frame with 5 variable that records the position of the orthogonal projection of the 4993 cases onto the network of roads. Excluding isolates (Pump 2 at Adam and Eve Court; Falconberg Court and Falconberg Mews), there are 4972 cases.<dl class='dl-horizontal'>
 <dt><code>road.segment</code></dt><dd>"address" road segment</dd>
 <dt><code>x.proj</code></dt><dd>x-coordinate</dd>
 <dt><code>y.proj</code></dt><dd>y-coordinate</dd>
 <dt><code>ortho.dist</code></dt><dd>orthogonal distance to home road segment</dd>
 <dt><code>case</code></dt><dd>numeric case ID</dd>
 </dl>

<code><a rd-options='' href='simulateFatalities'>simulateFatalities</a></code> documents the code for these data.

sim.ortho.proj: Orthogonal projection of simulated "expected" cases onto road network.

Description

Usage

Arguments

Format

Notes