extractPath

convert a dijkstra.sp predecessor structure into the path joining two nodes

determine a path between two nodes in a graph, using output of dijkstra.sp.

Keywords
models
Usage
extractPath(s, f, pens)
Arguments
s
index of starting node in nodes vector of the graph from which pens was derived
f
index of ending node in nodes vector
pens
predecessor index vector as returned in the preds component of dijkstra.sp output
References

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

See Also

allShortestPaths

Aliases
  • extractPath
Examples
data(FileDep)
dd <- dijkstra.sp(FileDep)
extractPath(1,9,dd$pen)
Documentation reproduced from package RBGL, version 1.48.1, License: Artistic-2.0

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