igraph v0.5.5-1

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by Gabor Csardi

Network analysis and visualization

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
cocitation Cocitation coupling
edge.betweenness.community Community structure detection based on edge betweenness
plot.bgraph Plot graphs and their cohesive block hierarchy
kleinberg Kleinberg's centrality scores.
graph.coreness K-core decomposition of graphs
graph.structure Method for structural manipulation of graphs
plot.igraph Plotting of graphs
shortest.paths Shortest (directed or undirected) paths between vertices
rglplot 3D plotting of graphs with OpenGL
graph.data.frame Creating igraph graphs from data frames
grg.game Geometric random graphs
subgraph Subgraph of a graph
diameter Diameter of a graph
arpack ARPACK eigenvector calculation
graph-motifs Graph motifs
igraph-package The igraph package
page.rank The Page Rank algorithm
bonpow Find Bonacich Power Centrality Scores of Network Positions
biconnected.components Biconnected components
clusters Connected components of a graph
permute.vertices Permute the vertices of a graph
simplify Simple graphs
unfold.tree Convert a general graph into a forest
graph-isomorphism Graph Isomorphism
graph.maxflow Maximum flow in a network
line.graph Line graph of a graph
label.propagation.community Finding communities based on propagating labels
topological.sort Topological sorting of vertices in a graph
as.directed Convert between directed and undirected graphs
graph.bipartite Create a bipartite graph
graph.lcf Creating a graph from LCF notation
articulation.points Articulation points of a graph
independent.vertex.sets Independent vertex sets
cohesive.blocks Calculate Cohesive Blocks
cliques The functions find cliques, ie. complete subgraphs in a graph
canonical.permutation Canonical permutation of a graph
print.igraph Print graphs to the terminal
graph.constructors Various methods for creating graphs
structure.info Gaining information about graph structure
attributes Graph, vertex and edge attributes
rewire.edges Rewires the endpoints of the edges of a graph randomly
is.multiple Find the multiple or loop edges in a graph
tkplot Interactive plotting of graphs
write.graph Writing the graph to a file in some format
modularity Modularity of a community structure of a graph
transitivity Transitivity of a graph
triad.census Triad census, subgraphs with three vertices
get.adjlist Adjacency lists
is.mutual Find mutual edges in a directed graph
neighborhood Neighborhood of graph vertices
edge.connectivity Edge connectivity.
graph.density Graph density
rewire Graph rewiring
fastgreedy.community Community structure via greedy optimization of modularity
graph.strength Strength or weighted vertex degree
growing.random.game Growing random graph generation
spinglass.community Finding communities in graphs based on statistical meachanics
barabasi.game Generate scale-free graphs according to the Barabasi-Albert model
vertex.connectivity Vertex connectivity.
degree Degree and degree distribution of the vertices
components In- or out- component of a vertex
Graphs from adjacency lists Create graphs from adjacency lists
erdos.renyi.game Generate random graphs according to the Erdos-Renyi model
layout.star Generate coordinates to place the vertices of a graph in a star-shape
graph.de.bruijn De Bruijn graphs.
reciprocity Reciprocity of graphs
communities Common functions supporting community detection algorithms
Drawing graphs Drawing graphs
watts.strogatz.game The Watts-Strogatz small-world model
graph.formula Creating (small) graphs via a simple interface
traits Graph generation based on different vertex types
closeness Closeness centrality of vertices
constraint Burt's constraint
conversion Convert a graph to an adjacency matrix or an edge list
graph.famous Creating named graphs
graph.incidence Create graphs from an incidence matrix
graph.kautz Kautz graphs
is.bipartite Decide whether a graph is bipartite
layout Generate coordinates for plotting graphs
layout.drl The DrL graph layout generator
girth Girth of a graph
graph.knn Average nearest neighbor degree
igraph from/to graphNEL conversion Convert igraph graphs to graphNEL objects or back
similarity Similarity measures of two vertices
aging.prefatt.game Generate an evolving random graph with preferential attachment and aging
dyad.census Dyad census of a graph
graph.laplacian Graph Laplacian
layout.merge Merging graph layouts
graph-operators Graph operators
tkigraph Experimental basic igraph GUI
running.mean Running mean of a time series
walktrap.community Community strucure via short random walks
graph.automorphisms Number of automorphisms
iterators Vertex and edge sequences and iterators
degree.sequence.game Generate random graphs with a given degree sequence
Vertex shapes Various vertex shapes when plotting igraph graphs
bipartite.projection Project a bipartite graph
decompose.graph Decompose a graph into components
alpha.centrality Find Bonacich alpha centrality scores of network positions
evcent Find Eigenvector Centrality Scores of Network Positions
graph.full.bipartite Create a full bipartite graph
igraph-parameters Parameters for the igraph package
is.igraph Is this object a graph?
write.pajek.bgraph Write graphs and their cohesive block hierarchy as Pajek files
forest.fire.game Forest Fire Network Model
graph.graphdb Load a graph from the graph database for testing graph isomorphism.
igraph.sample Sampling a random integer sequence
preference.game Trait-based random generation
read.graph Reading foreign file formats
graph.adjacency Create graphs from adjacency matrices
betweenness Vertex and edge betweenness centrality
get.incidence Incidence matrix of a bipartite graph
leading.eigenvector.community Community structure detecting based on the leading eigenvector of the community matrix
minimum.spanning.tree Minimum spanning tree
power.law.fit Fitting a power-law distribution function to discrete data
conversion between igraph and graphNEL graphs Convert igraph graphs to graphNEL objects or back
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Date Dec 17, 2010
License GPL (>= 2)
URL http://igraph.sourceforge.net
SystemRequirements gmp, libxml2
Repository CRAN
Date/Publication 2010-12-17 07:35:39
Packaged 2010-12-17 00:24:53 UTC; gaborcsardi

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