Added the python-graph module
http://code.google.com/p/python-graph/
Patch by: Sverre Rabbelier
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Module accessibility
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<!-- ==================== MODULE DESCRIPTION ==================== -->
<h1 class="epydoc">Module accessibility</h1><p class="nomargin-top"></p>
<p>Accessibility algorithms for python-graph.</p>
<!-- ==================== FUNCTIONS ==================== -->
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<span class="summary-type">dictionary</span>
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<td><span class="summary-sig"><a href="graph.accessibility-module.html#accessibility" class="summary-sig-name">accessibility</a>(<span class="summary-sig-arg">graph</span>)</span><br />
Accessibility matrix (transitive closure).</td>
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<span class="summary-type">dictionary</span>
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<td><span class="summary-sig"><a href="graph.accessibility-module.html#connected_components" class="summary-sig-name">connected_components</a>(<span class="summary-sig-arg">graph</span>)</span><br />
Connected components.</td>
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<td><span class="summary-sig"><a href="graph.accessibility-module.html#cut_edges" class="summary-sig-name">cut_edges</a>(<span class="summary-sig-arg">graph</span>)</span><br />
Return the cut-edges of the given graph.</td>
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<td><span class="summary-sig"><a href="graph.accessibility-module.html#cut_nodes" class="summary-sig-name">cut_nodes</a>(<span class="summary-sig-arg">graph</span>)</span><br />
Return the cut-nodes of the given graph.</td>
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<span class="summary-type">dictionary</span>
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<td><span class="summary-sig"><a href="graph.accessibility-module.html#mutual_accessibility" class="summary-sig-name">mutual_accessibility</a>(<span class="summary-sig-arg">graph</span>)</span><br />
Mutual-accessibility matrix (strongly connected components).</td>
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<a name="accessibility"></a>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">accessibility</span>(<span class="sig-arg">graph</span>)</span>
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<p>Accessibility matrix (transitive closure).</p>
<dl class="fields">
<dt>Parameters:</dt>
<dd><ul class="nomargin-top">
<li><strong class="pname"><code>graph</code></strong> (graph) - Graph.</li>
</ul></dd>
<dt>Returns: dictionary</dt>
<dd>Accessibility information for each node.</dd>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">connected_components</span>(<span class="sig-arg">graph</span>)</span>
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<p>Connected components.</p>
<dl class="fields">
<dt>Parameters:</dt>
<dd><ul class="nomargin-top">
<li><strong class="pname"><code>graph</code></strong> (graph) - Graph.</li>
</ul></dd>
<dt>Returns: dictionary</dt>
<dd>Pairing that associates each node to its connected component.</dd>
</dl>
<div class="fields"> <p><strong>Attention:</strong>
Indentification of connected components is meaningful only for
non-directed graphs.
</p>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">cut_edges</span>(<span class="sig-arg">graph</span>)</span>
</h3>
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</td>
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<p>Return the cut-edges of the given graph.</p>
<dl class="fields">
<dt>Returns: list</dt>
<dd>List of cut-edges.</dd>
</dl>
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<a name="cut_nodes"></a>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">cut_nodes</span>(<span class="sig-arg">graph</span>)</span>
</h3>
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>
</td>
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<p>Return the cut-nodes of the given graph.</p>
<dl class="fields">
<dt>Returns: list</dt>
<dd>List of cut-nodes.</dd>
</dl>
</td></tr></table>
</div>
<a name="mutual_accessibility"></a>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">mutual_accessibility</span>(<span class="sig-arg">graph</span>)</span>
</h3>
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>
</td>
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<p>Mutual-accessibility matrix (strongly connected components).</p>
<dl class="fields">
<dt>Parameters:</dt>
<dd><ul class="nomargin-top">
<li><strong class="pname"><code>graph</code></strong> (graph) - Graph.</li>
</ul></dd>
<dt>Returns: dictionary</dt>
<dd>Mutual-accessibility information for each node.</dd>
</dl>
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