dist.ellipse

<code>dist.ellipse</code> computes the length of the minor axis
needed for an ellipse of a certain <code>shape</code> and
<code>angle</code> to intersect each of the other coordinates
from a starting coordinate.

Implements statistical methods for analyzing the counts of areal data, with a focus on the detection of spatial clusters and clustering. The package has a heavy emphasis on spatial scan methods, which were first introduced by Kulldorff and Nagarwalla (1995) <doi:10.1002/sim.4780140809> and Kulldorff (1997) <doi:10.1080/03610929708831995>.

Joshua French

smerc

Statistical Methods for Regional Counts

Mohammad Meysami

dist.ellipse function

<dl><dt>coords</dt>
<dd>An \(N \times 2\) matrix of coordinates</dd>
<dt>shape</dt>
<dd>The ratio of the major axis to the minor
axis of the ellipse</dd>
<dt>angle</dt>
<dd>The angle of the ellipse in the range [0,
180).</dd></dl>

Arguments

Compute minor axis distance of ellipse — dist.ellipse

<dl>

<dt>coords</dt>
<dd>An \(N \times 2\) matrix of coordinates</dd>


<dt>shape</dt>
<dd>The ratio of the major axis to the minor
axis of the ellipse</dd>


<dt>angle</dt>
<dd>The angle of the ellipse in the range [0,
180).</dd>

</dl>

dist.ellipse: Compute minor axis distance of ellipse

Description

Usage

Value

Arguments

Examples