get_IDs

shape object, which is one of
<ol>
<li><code><a rd-options="sp:SpatialPolygonsDataFrame" href="/link/SpatialPolygons(DataFrame)?package=tmap&version=1.6&to=sp%3ASpatialPolygonsDataFrame" data-mini-rdoc="sp:SpatialPolygonsDataFrame::SpatialPolygons(DataFrame)">SpatialPolygons(DataFrame)</a></code>
 </li>
<li><code><a rd-options="sp:SpatialPointsDataFrame" href="/link/SpatialPoints(DataFrame)?package=tmap&version=1.6&to=sp%3ASpatialPointsDataFrame" data-mini-rdoc="sp:SpatialPointsDataFrame::SpatialPoints(DataFrame)">SpatialPoints(DataFrame)</a></code>
 </li>
<li><code><a rd-options="sp:SpatialLinesDataFrame" href="/link/SpatialLines(DataFrame)?package=tmap&version=1.6&to=sp%3ASpatialLinesDataFrame" data-mini-rdoc="sp:SpatialLinesDataFrame::SpatialLines(DataFrame)">SpatialLines(DataFrame)</a></code>
</li>
</ol>



Get ID's of the shape items. For polygons and lines, the ID attribute is used. For points, the coordinates are used.


Thematic maps are geographical maps in which spatial data distributions are visualized. This package offers a flexible, layer-based, and easy to use approach to create thematic maps, such as choropleths and bubble maps.

Martijn Tennekes

tmap

Thematic Maps

get_IDs function

shape object, which is one of
<ol>
<li><code><a rd-options='sp:SpatialPolygonsDataFrame' href='SpatialPolygons(DataFrame)'>SpatialPolygons(DataFrame)</a></code>
 </li>
<li><code><a rd-options='sp:SpatialPointsDataFrame' href='SpatialPoints(DataFrame)'>SpatialPoints(DataFrame)</a></code>
 </li>
<li><code><a rd-options='sp:SpatialLinesDataFrame' href='SpatialLines(DataFrame)'>SpatialLines(DataFrame)</a></code>
</li>
</ol>


get_IDs: Get ID's of the shape items

Description

Usage

Arguments

Value