igraph v0.5.4-1


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


Date Aug 19, 2010
License GPL (>= 2)
URL http://igraph.sourceforge.net
SystemRequirements gmp, libxml2
Packaged 2010-08-19 11:17:23 UTC; gaborcsardi
Repository CRAN
Date/Publication 2010-08-19 12:12:22

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