igraph v0.6-1


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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
edge.betweenness.community Community structure detection based on edge betweenness
decompose.graph Decompose a graph into components
components In- or out- component of a vertex
arpack ARPACK eigenvector calculation
contract.vertices Contract several vertices into a single one
Graphs from adjacency lists Create graphs from adjacency lists
dendPlot.igraphHRG HRG dendrogram plot
dendPlot.communities Plot fully hierarchical community structures as dendrograms
graph-motifs Graph motifs
graph.strength Strength or weighted vertex degree
graph.dfs Depth-first search
graph.structure Method for structural manipulation of graphs
layout.sugiyama The Sugiyama graph layout generator
betweenness Vertex and edge betweenness centrality
Combining attributes How igraph functions handle attributes when the graph changes
eccentricity Eccentricity and radius
is.weighted Weighted graphs
community.to.membership Common functions supporting community detection algorithms
is.dag Directed acyclic graphs
graph.automorphisms Number of automorphisms
edge.connectivity Edge connectivity.
Drawing graphs Drawing graphs
simplify Simple graphs
graph.constructors Various methods for creating graphs
Hierarchical random graphs Hierarchical random graphs
scgExtra SCG Extra Functions
interconnected.islands A graph with subgraphs that are each a random graph.
static.fitness.game Random graphs from vertex fitness scores
Spectral coarse graining Spectral Coarse Graining
igraphdemo Run igraph demos, step by step
get.edge.ids Find the edge ids based on the incident vertices of the edges
graph.matching Graph matching
is.mutual Find mutual edges in a directed graph
permute.vertices Permute the vertices of a graph
preference.game Trait-based random generation
subgraph.centrality Find subgraph centrality scores of network positions
communities Functions to deal with the result of network community detection
modularity Modularity of a community structure of a graph
graph.kautz Kautz graphs
minimum.size.separators Minimum size vertex separators
dominator.tree Dominator tree
igraph console The igraph console
as.directed Convert between directed and undirected graphs
growing.random.game Growing random graph generation
cocitation Cocitation coupling
label.propagation.community Finding communities based on propagating labels
rewire.edges Rewires the endpoints of the edges of a graph randomly
get.adjlist Adjacency lists
graph.famous Creating named graphs
igraph.sample Sampling a random integer sequence
transitivity Transitivity of a graph
Pie charts as vertices Using pie charts as vertices in graph plots
graph.coreness K-core decomposition of graphs
leading.eigenvector.community Community structure detecting based on the leading eigenvector of the community matrix
bonpow Find Bonacich Power Centrality Scores of Network Positions
shortest.paths Shortest (directed or undirected) paths between vertices
triad.census Triad census, subgraphs with three vertices
constraint Burt's constraint
conversion Convert a graph to an adjacency matrix or an edge list
graph.full.bipartite Create a full bipartite graph
minimal.st.separators Minimum size vertex separators
power.law.fit Fitting a power-law distribution function to discrete data
layout.star Generate coordinates to place the vertices of a graph in a star-shape
barabasi.game Generate scale-free graphs according to the Barabasi-Albert model
canonical.permutation Canonical permutation of a graph
evcent Find Eigenvector Centrality Scores of Network Positions
revolver Measuring the driving force in evolving networks
graph.bfs Breadth-first search
dyad.census Dyad census of a graph
get.incidence Incidence matrix of a bipartite graph
grg.game Geometric random graphs
graph.lcf Creating a graph from LCF notation
graph.data.frame Creating igraph graphs from data frames
structure.info Gaining information about graph structure
layout.grid Simple grid layout
degree.sequence.game Generate random graphs with a given degree sequence
graph-isomorphism Graph Isomorphism
layout Generate coordinates for plotting graphs
tkplot Interactive plotting of graphs
layout.merge Merging graph layouts
reciprocity Reciprocity of graphs
graph.bipartite Create a bipartite graph
subgraph Subgraph of a graph
get.stochastic Stochastic matrix of a graph
graph-operators-by-name Graph operators based on symbolic vertex names
minimum.spanning.tree Minimum spanning tree
topological.sort Topological sorting of vertices in a graph
tkigraph Experimental basic igraph GUI
watts.strogatz.game The Watts-Strogatz small-world model
closeness Closeness centrality of vertices
clusters Connected components of a graph
graph.de.bruijn De Bruijn graphs.
line.graph Line graph of a graph
scgGrouping SCG Problem Solver
scgSemiProjectors Semi-Projectors
unfold.tree Convert a general graph into a forest
articulation.points Articulation points of a graph
alpha.centrality Find Bonacich alpha centrality scores of network positions
as.igraph Conversion to igraph
attributes Graph, vertex and edge attributes
convex.hull Convex hull of a set of vertices
dendPlot Plot dendrograms
is.igraph Is this object a graph?
fastgreedy.community Community structure via greedy optimization of modularity
igraph-package The igraph package
forest.fire.game Forest Fire Network Model
rglplot 3D plotting of graphs with OpenGL
static.power.law.game Scale-free random graphs, from vertex fitness scores
walktrap.community Community strucure via short random walks
write.graph Writing the graph to a file in some format
aging.prefatt.game Generate an evolving random graph with preferential attachment and aging
compare.communities Compares community structures using various metrics
graph.formula Creating (small) graphs via a simple interface
graph.laplacian Graph Laplacian
plot.igraph Plotting of graphs
similarity Similarity measures of two vertices
vertex.connectivity Vertex connectivity.
multilevel.community Finding community structure by multi-level optimization of modularity
biconnected.components Biconnected components
bipartite.projection Project a bipartite graph
graph.incidence Create graphs from an incidence matrix
graph.maxflow Maximum flow in a network
is.named Named graphs
scg All-in-one Function for the SCG of Matrices and Graphs
traits Graph generation based on different vertex types
assortativity Assortativity coefficient
erdos.renyi.game Generate random graphs according to the Erdos-Renyi model
graph.adjacency Create graphs from adjacency matrices
graph.density Graph density
graph.knn Average nearest neighbor degree
centralization Centralization of a graph.tmax
igraph options Parameters for the igraph package
infomap.community Infomap community finding
nexus Query and download from the Nexus network repository
conversion between igraph and graphNEL graphs Convert igraph graphs to graphNEL objects or back
running.mean Running mean of a time series
print.igraph Print graphs to the terminal
read.graph Reading foreign file formats
stCuts List all (s,t)-cuts of a graph
independent.vertex.sets Independent vertex sets
layout.drl The DrL graph layout generator
neighborhood Neighborhood of graph vertices
iterators Vertex and edge sequences and iterators
girth Girth of a graph
graph.graphdb Load a graph from the graph database for testing graph isomorphism.
kleinberg Kleinberg's centrality scores.
page.rank The Page Rank algorithm
igraph.undocumented Undocumented and unsupportted igraph functions
stMincuts List all minimum $(s,t)$-cuts of a graph
autocurve.edges Optimal edge curvature when plotting graphs
cliques The functions find cliques, ie. complete subgraphs in a graph
diameter Diameter of a graph
Vertex shapes Various vertex shapes when plotting igraph graphs
is.chordal Chordality of a graph
is.separator Vertex separators
optimal.community Optimal community structure
rewire Graph rewiring
spinglass.community Finding communities in graphs based on statistical meachanics
cohesive.blocks Calculate Cohesive Blocks
degree Degree and degree distribution of the vertices
graph.diversity Graph diversity
bipartite.mapping Decide whether a graph is bipartite
is.multiple Find the multiple or loop edges in a graph
maximum.cardinality.search Maximum cardinality search
graph-operators Graph operators
k.regular.game Create a random regular graph
is.degree.sequence Degree sequences of graphs
layout.mds Graph layout by multidimensional scaling
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Last month downloads


Date Jun 11, 2012
License GPL (>= 2)
URL http://igraph.sourceforge.net
SystemRequirements gmp, libxml2
Packaged 2012-06-17 01:48:50 UTC; gaborcsardi
Repository CRAN
Date/Publication 2012-06-17 02:30:00

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