igraph v0.5.2-2


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


Date Apr 10, 2009
License GPL (>= 2)
URL http://cneurocvs.rmki.kfki.hu/igraph
Repository CRAN
Date/Publication 2009-05-08 11:36:36
Packaged 2009-05-08 11:26:59 UTC; csardi

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