even_graph-class

graph_NEL-class

is_even_graph

is_even_graph,even_graph-method

is_even_graph,graphNEL-method

This class is an extension of <code>graphNEL-class</code>. For graphs of this class, euler tours may always be constructed. Objects of this class should be created by <code>mk_even_graph</code>

classes

graphs

even_graph

Improving graphics by ameliorating order effects, using Eulerian tours
and Hamiltonian decompositions of graphs. References for the methods presented
here are C.B. Hurley and R.W. Oldford (2010) <doi:10.1198/jcgs.2010.09136> and
C.B. Hurley and R.W. Oldford (2011) <doi:10.1007/s00180-011-0229-5>.

Catherine Hurley

PairViz

Visualization using Graph Traversal

even_graph function

This class has all slots from <code>graphNEL-class</code> plus:<dl>
 <dt><code>dummy_node</code>:</dt>
<dd>Object of class <code>"character"</code></dd> <dt><code>extra_edges</code>:</dt>
<dd>Object of class <code>"character"</code></dd> <dt><code>weighted</code>:</dt>
<dd>Object of class <code>"logical"</code></dd> % \item{\code{nodes}:}{Object of class \code{"vector"} ~~ }
 % \item{\code{edgeL}:}{Object of class \code{"list"} ~~ }
 % \item{\code{edgemode}:}{Object of class \code{"character"} ~~ }
 % \item{\code{edgeData}:}{Object of class \code{"attrData"} ~~ }
 % \item{\code{nodeData}:}{Object of class \code{"attrData"} ~~ }
 % \item{\code{renderInfo}:}{Object of class \code{"renderInfo"} ~~ }
 % \item{\code{graphData}:}{Object of class \code{"list"} ~~ }
 
</dl>

Slots

Class <code>graphNEL-class</code>, directly.
Class <code>graph-class</code>, by class "graphNEL", distance 2.

Extends

<dl>
<dt>is_even_graph</dt>
<dd><code>signature(g = "graphNEL")</code>: checks whether a graph has all nodes of even degree.</dd> 
<dt>is_even_graph</dt>
<dd><code>signature(g = "even_graph")</code>: always TRUE.</dd>
</dl>

Methods

Author

Class of graphs where all nodes have even degree — even_graph

This class has all slots from <code>graphNEL-class</code> plus:<dl>
 <dt><code>dummy_node</code>:</dt>
<dd>Object of class <code>"character"</code></dd>

 <dt><code>extra_edges</code>:</dt>
<dd>Object of class <code>"character"</code></dd>

 <dt><code>weighted</code>:</dt>
<dd>Object of class <code>"logical"</code></dd>

 % \item{\code{nodes}:}{Object of class \code{"vector"} ~~ }
 % \item{\code{edgeL}:}{Object of class \code{"list"} ~~ }
 % \item{\code{edgemode}:}{Object of class \code{"character"} ~~ }
 % \item{\code{edgeData}:}{Object of class \code{"attrData"} ~~ }
 % \item{\code{nodeData}:}{Object of class \code{"attrData"} ~~ }
 % \item{\code{renderInfo}:}{Object of class \code{"renderInfo"} ~~ }
 % \item{\code{graphData}:}{Object of class \code{"list"} ~~ }
 
</dl>

<dl>
<dt>is_even_graph</dt>
<dd><code>signature(g = "graphNEL")</code>: checks whether a graph has all nodes of even degree.</dd>

 
<dt>is_even_graph</dt>
<dd><code>signature(g = "even_graph")</code>: always TRUE.</dd>


</dl>

even_graph: Class of graphs where all nodes have even degree

Description

Arguments

Slots

Extends

Methods

Author

References

Examples