igraph v0.6.5-2


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


Date 2013-05-16
License GPL (>= 2)
URL http://igraph.sourceforge.net
SystemRequirements gmp, libxml2
Packaged 2013-05-23 13:11:38 UTC; gaborcsardi
NeedsCompilation yes
Repository CRAN
Date/Publication 2013-05-23 17:39:35

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