streetLength

Compute length of selected street.

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

streetLength function

<dl><dt>road</dt>
<dd>Character or Numeric. Road name or number. For names, the function tries to correct for case and to remove extra spaces.</dd>
<dt>distance.unit</dt>
<dd>Character. Unit of distance: "meter", "yard" or "native". "native" returns the map's native scale. See <code>vignette("roads")</code> for information on conversion.</dd></dl>

Arguments

Compute length of selected street. — streetLength

<dl>

<dt>road</dt>
<dd>Character or Numeric. Road name or number. For names, the function tries to correct for case and to remove extra spaces.</dd>


<dt>distance.unit</dt>
<dd>Character. Unit of distance: "meter", "yard" or "native". "native" returns the map's native scale. See <code>vignette("roads")</code> for information on conversion.</dd>

</dl>

streetLength: Compute length of selected street.

Description

Usage

Value

Arguments

Examples