SpaceTime-class

.SpaceTime

An S4 class to represent space-time informations.

internal

An easy way to examine archaeological count data. This package
provides a convenient and reproducible toolkit for relative and absolute
dating and analysis of (chronological) patterns. It includes functions for
matrix seriation (reciprocal ranking, CA-based seriation), chronological
modeling and dating of archaeological assemblages and/or objects.
Beyond these, the package provides several tests and measures of diversity:
heterogeneity and evenness (Brillouin, Shannon, Simpson, etc.),
richness and rarefaction (Chao1, Chao2, ACE, ICE, etc.),
turnover and similarity (Brainerd-Robinson, etc.).
The package make it easy to visualize count data and statistical thresholds:
rank vs. abundance plots, heatmaps, Ford (1962) and Bertin (1977) diagrams.

Nicolas Frerebeau

tabula

Analysis, Seriation and Visualization of Archaeological Count
Data

Brice Lebrun

Matthew Peeples

Ben Marwick

Anne Philippe

Jean-Baptiste Fourvel

SpaceTime-class function

<dl class="dl-horizontal">
<dt><code>dates</code></dt><dd>A two column <code><a rd-options="" href="/link/numeric?package=tabula&version=1.3.0" data-mini-rdoc="tabula::numeric">numeric</a></code> matrix giving
the date <code>value</code> and <code>error</code>, respectively.</dd></dl><dt><code>coordinates</code></dt><dd>A three columns <code><a rd-options="" href="/link/numeric?package=tabula&version=1.3.0" data-mini-rdoc="tabula::numeric">numeric</a></code> matrix
(<code>x</code>, <code>y</code> and <code>z</code>) giving the geographic coordinates
(longitude, latitude and elevation, respectively).</dd><dt><code>epsg</code></dt><dd>An <code><a rd-options="" href="/link/integer?package=tabula&version=1.3.0" data-mini-rdoc="tabula::integer">integer</a></code> giving the EPSG code of the spatial
reference system used. Numeric values are coerced to <code><a rd-options="" href="/link/integer?package=tabula&version=1.3.0" data-mini-rdoc="tabula::integer">integer</a></code>
as by <code><a rd-options="" href="/link/as.integer?package=tabula&version=1.3.0" data-mini-rdoc="tabula::as.integer">as.integer</a></code> (and hence truncated towards zero).</dd>

Slots

In the code snippets below, <code>x</code> is a <code>SpaceTime</code> object.<dl class="dl-horizontal">
 <dt><code>get_dates(x)</code>, <code>set_dates(x) &lt;- value</code></dt><dd>Get or set the dates
 of <code>x</code> according to <code>value</code>
 (see <code><a rd-options="=set_dates&lt;-" href="/link/set_dates?package=tabula&version=1.3.0&to=%3Dset_dates%26lt%3B-" data-mini-rdoc="=set_dates&lt;-::set_dates">set_dates</a></code> for details).</dd>
 <dt><code>get_coordinates(x)</code>, <code>set_coordinates(x) &lt;- value</code></dt><dd>Get or
 set the geographical coordinates of <code>x</code> according to <code>value</code>
 (see <code><a rd-options="=set_coordinates&lt;-" href="/link/set_coordinates?package=tabula&version=1.3.0&to=%3Dset_coordinates%26lt%3B-" data-mini-rdoc="=set_coordinates&lt;-::set_coordinates">set_coordinates</a></code> for details).</dd>
 <dt><code>get_epsg(x)</code>, <code>set_epsg(x) &lt;- value</code></dt><dd>Get or
 set the EPSG of <code>x</code> according to <code>value</code>. Numeric values are
 coerced to <code><a rd-options="" href="/link/integer?package=tabula&version=1.3.0" data-mini-rdoc="tabula::integer">integer</a></code> as by <code><a rd-options="" href="/link/as.integer?package=tabula&version=1.3.0" data-mini-rdoc="tabula::as.integer">as.integer</a></code> (and hence
 truncated towards zero).</dd>
 <dt><code>get_features(x)</code></dt><dd>Convert an <code>AbundanceMatrix</code>
 object to a <code><a rd-options="=data.frame" href="/link/data%20frame?package=tabula&version=1.3.0&to=%3Ddata.frame" data-mini-rdoc="=data.frame::data frame">data frame</a></code> with dates and
 coordinates columns.</dd>
 </dl>

Get and set

Space and Time — SpaceTime-class

Space and Time

SpaceTime-class: Space and Time

Description

Arguments

Slots

Get and set