Compute biconnected components for a graph
Compute biconnected components for a graph
biConnComp(g) articulationPoints(g)
g |
an instance of the |
A biconnected graph is a connected graph that remains connected when any one of its vertices, and all the edges incident on this vertex, is removed and the graph remains connected. A biconnected component of a graph is a subgraph which is biconnected. An integer label is assigned to each edge to indicate which biconnected component it's in.
A vertex in a graph is called an articulation point if removing it increases the number of connected components.
See the documentation for the Boost Graph Library for more details.
For biConnComp
:
a vector whose length is no. of biconnected components, each entry is a list
of nodes that are on the same biconnected components.
For articulationPoints
:
a vector of articulation points in the graph.
Li Long <li.long@isb-sib.ch>
Boost Graph Library ( www.boost.org/libs/graph/doc/index.html )
The Boost Graph Library: User Guide and Reference Manual; by Jeremy G. Siek, Lie-Quan Lee, and Andrew Lumsdaine; (Addison-Wesley, Pearson Education Inc., 2002), xxiv+321pp. ISBN 0-201-72914-8
con <- file(system.file("XML/conn.gxl",package="RBGL"), open="r") coex <- fromGXL(con) close(con) biConnComp(coex) articulationPoints(coex)
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