withinRadius

Numeric. Data frame of x-y coordinates.

radius

Test whether point "b" is within a given radius of point "a".

Amends errors, augments data and aids analysis of John Snow's map
of the 1854 London cholera outbreak.

Peter Li 

cholera

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

withinRadius function

<dl><dt>a</dt>
<dd>Numeric. Data frame of x-y coordinates.</dd>
<dt>b</dt>
<dd>Numeric. Data frame of x-y coordinates.</dd>
<dt>radius</dt>
<dd>Numeric.</dd></dl>

Arguments

Test whether point "b" is within a given radius of point "a". — withinRadius

<dl>

<dt>a</dt>
<dd>Numeric. Data frame of x-y coordinates.</dd>


<dt>b</dt>
<dd>Numeric. Data frame of x-y coordinates.</dd>


<dt>radius</dt>
<dd>Numeric.</dd>

</dl>

withinRadius: Test whether point "b" is within a given radius of point "a".

Description

Usage

Arguments