addCoordinates

Places node coordinates in the two-dimensional euclidean plane.

Algorithms to approximate the Pareto-front of multi-criteria minimum spanning tree problems. Additionally, a modular toolbox for the generation of multi-objective benchmark graph problems is included.

Jakob Bossek

mcMST

A Toolbox for the Multi-Criteria Minimum Spanning Tree Problem

addCoordinates function

<dl><dt>graph</dt>
<dd>[<code>mcGP</code>] 
Multi-objective graph problem.</dd>
<dt>n</dt>
<dd>[<code>integer</code>] 
Number of coordinates to place. If <code>by.centers</code> is <code>FALSE</code> a single
integer value is expected. Otherwise, a vector v may be passed. In this case
v[i] coordinates are generated for each cluster. However, if a single value is
passed and <code>by.center == TRUE</code>, each cluster is assigned the same number of
coordinates.</dd>
<dt>generator</dt>
<dd>[<code>function(n, ...)</code>] 
Function used to generate coordinates. The generator needs to expect the number
of points to generate as the first argument <code>n</code>. Additional control argument are
possible.</dd>
<dt>by.centers</dt>
<dd>[<code>logical(1)</code>] 
Should coordinates be placed for each cluster center seperately? This enables
geneation of clustered coordinates.
Default is <code>FALSE</code>.</dd>
<dt>par.fun</dt>
<dd>[<code>function(cc) | NULL</code>] 
Optional function which is applied to each cluster center <code>cc</code> before the generation
of coordinates in case <code>by.centers</code> is <code>TRUE</code>. This enables to specifically
determine additional parameters for the <code>generator</code> for each cluster.</dd>
<dt>...</dt>
<dd>[any] 
Furhter arguments passed down to <code>generator</code>.</dd></dl>

Arguments

Add node coordinates to graph. — addCoordinates

<dl>

<dt>graph</dt>
<dd>[<code>mcGP</code>] 
Multi-objective graph problem.</dd>


<dt>n</dt>
<dd>[<code>integer</code>] 
Number of coordinates to place. If <code>by.centers</code> is <code>FALSE</code> a single
integer value is expected. Otherwise, a vector v may be passed. In this case
v[i] coordinates are generated for each cluster. However, if a single value is
passed and <code>by.center == TRUE</code>, each cluster is assigned the same number of
coordinates.</dd>


<dt>generator</dt>
<dd>[<code>function(n, ...)</code>] 
Function used to generate coordinates. The generator needs to expect the number
of points to generate as the first argument <code>n</code>. Additional control argument are
possible.</dd>


<dt>by.centers</dt>
<dd>[<code>logical(1)</code>] 
Should coordinates be placed for each cluster center seperately? This enables
geneation of clustered coordinates.
Default is <code>FALSE</code>.</dd>


<dt>par.fun</dt>
<dd>[<code>function(cc) | NULL</code>] 
Optional function which is applied to each cluster center <code>cc</code> before the generation
of coordinates in case <code>by.centers</code> is <code>TRUE</code>. This enables to specifically
determine additional parameters for the <code>generator</code> for each cluster.</dd>


<dt>...</dt>
<dd>[any] 
Furhter arguments passed down to <code>generator</code>.</dd>

</dl>

addCoordinates: Add node coordinates to graph.

Description

Usage

Value

Arguments

See Also