igraph v0.4.1

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by Gabor Csardi

Routines for simple graphs, network analysis.

Routines for simple graphs and network analysis. igraph can handle large graphs very well and provides functions for generating random and regular graphs, graph visualization, centrality indices and much more.

Functions in igraph

Name Description
betweenness Vertex and edge betweenness centrality
revolver Measuring the driving force in evolving networks
clusters Connected components of a graph
bonpow Find Bonacich Power Centrality Scores of Network Positions
conversion Convert a graph to an adjacency matrix or an edge list
decompose.graph Decompose a graph into components
cliques The functions find cliques, ie. complete subgraphs in a graph
barabasi.game Generate scale-free graphs according to the Barabasi-Albert model
edge.betweenness.community Community structure detection based on edge betweenness
attributes Graph, vertex and edge attributes
constraint Burt's constraint
components In- or out- component of a vertex
evcent Find Eigenvector Centrality Scores of Network Positions
degree Degree and degree distribution of the vertices
as.directed Convert between directed and undirected graphs
diameter Diameter of a graph
grg.game Geometric random graphs
fastgreedy.community Community structure via greedy optimization of modularity
alpha.centrality Find Bonacich alpha centrality scores of network positions
communities Common functions supporting community detection algorithms
erdos.renyi.game Generate random graphs according to the Erdos-Renyi model
graph.coreness K-core decomposition of graphs
igraph.sample Sampling a random integer sequence
girth Girth of a graph
graph-operators Graph operators
is.igraph Is this object a graph?
degree.sequence.game Generate random graphs with a given degree sequence
graph-motifs Graph motifs
graph.maxflow Maximum flow in a network
graph.density Graph density
graph.constructors Various methods for creating graphs
graph.graphdb Load a graph from the graph database for testing graph isomorphism.
cocitation Cocitation coupling
graph.laplacian Graph Laplacian
reciprocity Reciprocity of graphs
iterators Vertex and edge sequences and iterators
graph-isomorphism Graph Isomorphism
igraph-parameters Parameters for the igraph package
growing.random.game Growing random graph generation
layout Generate coordinates for plotting graphs
rewire.edges Rewires the endpoints of the edges of a graph randomly
neighborhood Neighborhood of graph vertices
page.rank The Page Rank algorithm
layout.merge Merging graph layouts
modularity Modularity of a community structure of a graph
plot.igraph Plotting of graphs
leading.eigenvector.community Community structure detecting based on the leading eigenvector of the community matrix
minimum.spanning.tree Minimum spanning tree
read.graph Reading foreign file formats
structure.info Gaining information about graph structure
aging.prefatt.game Generate an evolving random graph with preferential attachment and aging
graph.structure Method for structural manipulation of graphs
measure.dynamics Measuring the driving force in evolving networks
print.igraph Print graphs to the terminal
closeness Closeness centrality of vertices
rewire Graph rewiring
rglplot 3D plotting of graphs with OpenGL
edge.connectivity Edge connectivity.
preference.game Trait-based random generation
shortest.paths Shortest (directed or undirected) paths between vertices
independent.vertex.sets Independent vertex sets
igraph.undocumented Undocumented and unsupportted igraph functions
power.law.fit Fitting a power-law distribution function to discrete data
transitivity Transitivity of a graph
spinglass.community Finding communities in graphs based on statistical meachanics
tkplot Interactive plotting of graphs
Drawing graphs Drawing graphs
write.graph Writing the graph to a file in some format
traits Graph generation based on different vertex types
topological.sort Topological sorting of vertices in a graph
vertex.connectivity Vertex connectivity.
simplify Remove loop and/or multiple edges from a graph
watts.strogatz.game The Watts-Strogatz small-world model
subgraph Subgraph of a graph
walktrap.community Community strucure via short random walks
running.mean Running mean of a time series
articulation.points Articulation points of a graph
biconnected.components Biconnected components
write.pajek.bgraph Write graphs and their cohesive block hierarchy as Pajek files
cohesive.blocks Calculate Cohesive Blocks
plot.bgraph Plot graphs and their cohesive block hierarchy
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Date May 10, 2007
License GPL version 2 or later (June, 1991)
URL http://cneurocvs.rmki.kfki.hu/igraph
Packaged Tue May 22 23:04:16 2007; csardi
suggests rgl , stats4
depends stats
Contributors Gabor Csardi

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