Network Analysis and Visualization

aaa-igraph-package | The igraph package |

add_edges | Add edges to a graph |

add_layout_ | Add layout to graph |

add_vertices | Add vertices to a graph |

adjacent_vertices | Adjacent vertices of multiple vertices in a graph |

all_simple_paths | List all simple paths from one source |

alpha_centrality | Find Bonacich alpha centrality scores of network positions |

are_adjacent | Are two vertices adjacent? |

arpack | ARPACK eigenvector calculation |

articulation_points | Articulation points and bridges of a graph |

as_adjacency_matrix | Convert a graph to an adjacency matrix |

as_adj_list | Adjacency lists |

as.directed | Convert between directed and undirected graphs |

as_edgelist | Convert a graph to an edge list |

as_graphnel | Convert igraph graphs to graphNEL objects from the graph... |

as_ids | Convert a vertex or edge sequence to an ordinary vector |

as.igraph | Conversion to igraph |

as_incidence_matrix | Incidence matrix of a bipartite graph |

as_long_data_frame | Convert a graph to a long data frame |

as.matrix.igraph | Convert igraph objects to adjacency or edge list matrices |

as_membership | Declare a numeric vector as a membership vector |

assortativity | Assortativity coefficient |

automorphism_group | Generating set of the automorphism group of a graph |

betweenness | Vertex and edge betweenness centrality |

bfs | Breadth-first search |

biconnected_components | Biconnected components |

bipartite_mapping | Decide whether a graph is bipartite |

bipartite_projection | Project a bipartite graph |

canonical_permutation | Canonical permutation of a graph |

categorical_pal | Palette for categories |

centralize | Centralization of a graph |

centr_betw | Centralize a graph according to the betweenness of vertices |

centr_betw_tmax | Theoretical maximum for betweenness centralization |

centr_clo | Centralize a graph according to the closeness of vertices |

centr_clo_tmax | Theoretical maximum for closeness centralization |

centr_degree | Centralize a graph according to the degrees of vertices |

centr_degree_tmax | Theoretical maximum for degree centralization |

centr_eigen | Centralize a graph according to the eigenvector centrality of... |

centr_eigen_tmax | Theoretical maximum for betweenness centralization |

c.igraph.es | Concatenate edge sequences |

c.igraph.vs | Concatenate vertex sequences |

cliques | Functions to find cliques, i.e. complete subgraphs in a graph |

closeness | Closeness centrality of vertices |

cluster_edge_betweenness | Community structure detection based on edge betweenness |

cluster_fast_greedy | Community structure via greedy optimization of modularity |

cluster_fluid_communities | Community detection algorithm based on interacting fluids |

cluster_infomap | Infomap community finding |

cluster_label_prop | Finding communities based on propagating labels |

cluster_leading_eigen | Community structure detecting based on the leading... |

cluster_leiden | Finding community structure of a graph using the Leiden... |

cluster_louvain | Finding community structure by multi-level optimization of... |

cluster_optimal | Optimal community structure |

cluster_spinglass | Finding communities in graphs based on statistical meachanics |

cluster_walktrap | Community structure via short random walks |

cocitation | Cocitation coupling |

cohesive_blocks | Calculate Cohesive Blocks |

communities | Functions to deal with the result of network community... |

compare | Compares community structures using various metrics |

complementer | Complementer of a graph |

components | Connected components of a graph |

component_wise | Component-wise layout |

compose | Compose two graphs as binary relations |

consensus_tree | Create a consensus tree from several hierarchical random... |

console | The igraph console |

constraint | Burt's constraint |

contract | Contract several vertices into a single one |

convex_hull | Convex hull of a set of vertices |

coreness | K-core decomposition of graphs |

count_automorphisms | Number of automorphisms |

count_isomorphisms | Count the number of isomorphic mappings between two graphs |

count_motifs | Graph motifs |

count_subgraph_isomorphisms | Count the isomorphic mappings between a graph and the... |

count_triangles | Find triangles in graphs |

curve_multiple | Optimal edge curvature when plotting graphs |

decompose | Decompose a graph into components |

degree | Degree and degree distribution of the vertices |

delete_edge_attr | Delete an edge attribute |

delete_edges | Delete edges from a graph |

delete_graph_attr | Delete a graph attribute |

delete_vertex_attr | Delete a vertex attribute |

delete_vertices | Delete vertices from a graph |

dfs | Depth-first search |

diameter | Diameter of a graph |

difference | Difference of two sets |

difference.igraph | Difference of graphs |

difference.igraph.es | Difference of edge sequences |

difference.igraph.vs | Difference of vertex sequences |

dim_select | Dimensionality selection for singular values using profile... |

disjoint_union | Disjoint union of graphs |

distances | Shortest (directed or undirected) paths between vertices |

diverging_pal | Diverging palette |

diversity | Graph diversity |

dominator_tree | Dominator tree |

dot-data | '.data' and '.env' pronouns |

dyad_census | Dyad census of a graph |

E | Edges of a graph |

each_edge | Rewires the endpoints of the edges of a graph to a random... |

eccentricity | Eccentricity of the vertices in a graph |

edge | Helper function for adding and deleting edges |

edge_attr | Query edge attributes of a graph |

edge_attr_names | List names of edge attributes |

edge_attr-set | Set one or more edge attributes |

edge_connectivity | Edge connectivity |

edge_density | Graph density |

ego | Neighborhood of graph vertices |

eigen_centrality | Find Eigenvector Centrality Scores of Network Positions |

embed_adjacency_matrix | Spectral Embedding of Adjacency Matrices |

embed_laplacian_matrix | Spectral Embedding of the Laplacian of a Graph |

ends | Incident vertices of some graph edges |

erdos.renyi.game | Generate random graphs according to the Erdős-Rényi model |

estimate_betweenness | Deprecated version of 'betweenness()' |

estimate_closeness | Deprecated version of 'closeness()' |

estimate_edge_betweenness | Deprecated version of 'edge_betweenness()' |

feedback_arc_set | Finding a feedback arc set in a graph |

fit_hrg | Fit a hierarchical random graph model |

fit_power_law | Fitting a power-law distribution function to discrete data |

get.edge.ids | Find the edge ids based on the incident vertices of the edges |

girth | Girth of a graph |

global_efficiency | Efficiency of a graph |

gorder | Order (number of vertices) of a graph |

graph_ | Convert object to a graph |

graph_attr | Graph attributes of a graph |

graph_attr_names | List names of graph attributes |

graph_attr-set | Set all or some graph attributes |

graph_from_adjacency_matrix | Create graphs from adjacency matrices |

graph_from_adj_list | Create graphs from adjacency lists |

graph_from_atlas | Create a graph from the Graph Atlas |

graph_from_data_frame | Creating igraph graphs from data frames or vice-versa |

graph_from_edgelist | Create a graph from an edge list matrix |

graph_from_graphdb | Load a graph from the graph database for testing graph... |

graph_from_graphnel | Convert graphNEL objects from the graph package to igraph |

graph_from_incidence_matrix | Create graphs from an incidence matrix |

graph_from_isomorphism_class | Create a graph from an isomorphism class |

graph_from_lcf | Creating a graph from LCF notation |

graph_from_literal | Creating (small) graphs via a simple interface |

graph_id | Get the id of a graph |

graphlet_basis | Graphlet decomposition of a graph |

graph_version | igraph data structure versions |

greedy_vertex_coloring | Greedy vertex coloring |

groups | Groups of a vertex partitioning |

gsize | The size of the graph (number of edges) |

handle_vertex_type_arg | Common handler for vertex type arguments in igraph functions |

harmonic_centrality | Harmonic centrality of vertices |

has_eulerian_path | Find Eulerian paths or cycles in a graph |

head_of | Head of the edge(s) in a graph |

head_print | Print the only the head of an R object |

hrg | Create a hierarchical random graph from an igraph graph |

hrg-methods | Hierarchical random graphs |

hrg_tree | Create an igraph graph from a hierarchical random graph model |

hub_score | Kleinberg's hub and authority centrality scores. |

identical_graphs | Decide if two graphs are identical |

igraph-attribute-combination | How igraph functions handle attributes when the graph changes |

igraph_demo | Run igraph demos, step by step |

igraph-dollar | Getting and setting graph attributes, shortcut |

igraph-es-attributes | Query or set attributes of the edges in an edge sequence |

igraph-es-indexing | Indexing edge sequences |

igraph-es-indexing2 | Select edges and show their metadata |

igraph-minus | Delete vertices or edges from a graph |

igraph_options | Parameters for the igraph package |

igraph_test | Run package tests |

igraph_version | Query igraph's version string |

igraph-vs-attributes | Query or set attributes of the vertices in a vertex sequence |

igraph-vs-indexing | Indexing vertex sequences |

igraph-vs-indexing2 | Select vertices and show their metadata |

incident | Incident edges of a vertex in a graph |

incident_edges | Incident edges of multiple vertices in a graph |

indent_print | Indent a printout |

intersection | Intersection of two or more sets |

intersection.igraph | Intersection of graphs |

intersection.igraph.es | Intersection of edge sequences |

intersection.igraph.vs | Intersection of vertex sequences |

is_chordal | Chordality of a graph |

is_dag | Directed acyclic graphs |

is_degseq | Check if a degree sequence is valid for a multi-graph |

is_directed | Check whether a graph is directed |

is_graphical | Is a degree sequence graphical? |

is_igraph | Is this object an igraph graph? |

is_min_separator | Minimal vertex separators |

is_named | Named graphs |

isomorphic | Decide if two graphs are isomorphic |

isomorphism_class | Isomorphism class of a graph |

isomorphisms | Calculate all isomorphic mappings between the vertices of two... |

is_printer_callback | Is this a printer callback? |

is_separator | Vertex separators |

is_tree | Decide whether a graph is a tree. |

is_weighted | Weighted graphs |

ivs | Independent vertex sets |

keeping_degseq | Graph rewiring while preserving the degree distribution |

knn | Average nearest neighbor degree |

laplacian_matrix | Graph Laplacian |

layout_ | Graph layouts |

layout_as_bipartite | Simple two-row layout for bipartite graphs |

layout_as_star | Generate coordinates to place the vertices of a graph in a... |

layout_as_tree | The Reingold-Tilford graph layout algorithm |

layout.deprecated | Deprecated layout functions |

layout.fruchterman.reingold.grid | Grid Fruchterman-Reingold layout, this was removed from... |

layout_in_circle | Graph layout with vertices on a circle. |

layout_nicely | Choose an appropriate graph layout algorithm automatically |

layout_on_grid | Simple grid layout |

layout_on_sphere | Graph layout with vertices on the surface of a sphere |

layout_randomly | Randomly place vertices on a plane or in 3d space |

layout.spring | Spring layout, this was removed from igraph |

layout.svd | SVD layout, this was removed from igraph |

layout_with_dh | The Davidson-Harel layout algorithm |

layout_with_drl | The DrL graph layout generator |

layout_with_fr | The Fruchterman-Reingold layout algorithm |

layout_with_gem | The GEM layout algorithm |

layout_with_graphopt | The graphopt layout algorithm |

layout_with_kk | The Kamada-Kawai layout algorithm |

layout_with_lgl | Large Graph Layout |

layout_with_mds | Graph layout by multidimensional scaling |

layout_with_sugiyama | The Sugiyama graph layout generator |

local_scan | Compute local scan statistics on graphs |

make_ | Make a new graph |

make_bipartite_graph | Create a bipartite graph |

make_chordal_ring | Create an extended chordal ring graph |

make_clusters | Creates a communities object. |

make_de_bruijn_graph | De Bruijn graphs |

make_empty_graph | A graph with no edges |

make_from_prufer | Create an undirected tree graph from its Prüfer sequence |

make_full_bipartite_graph | Create a full bipartite graph |

make_full_citation_graph | Create a complete (full) citation graph |

make_full_graph | Create a full graph |

make_graph | Create an igraph graph from a list of edges, or a notable... |

make_kautz_graph | Kautz graphs |

make_lattice | Create a lattice graph |

make_line_graph | Line graph of a graph |

make_ring | Create a ring graph |

make_star | Create a star graph, a tree with n vertices and n - 1 leaves |

make_tree | Create tree graphs |

matching | Matching |

match_vertices | Match Graphs given a seeding of vertex correspondences |

max_cardinality | Maximum cardinality search |

max_flow | Maximum flow in a graph |

merge_coords | Merging graph layouts |

min_cut | Minimum cut in a graph |

min_separators | Minimum size vertex separators |

min_st_separators | Minimum size vertex separators |

modularity.igraph | Modularity of a community structure of a graph |

motifs | Graph motifs |

mst | Minimum spanning tree |

neighbors | Neighboring (adjacent) vertices in a graph |

normalize | Normalize layout |

norm_coords | Normalize coordinates for plotting graphs |

page_rank | The Page Rank algorithm |

path | Helper function to add or delete edges along a path |

permute | Permute the vertices of a graph |

pipe | Magrittr's pipes |

plot.common | Drawing graphs |

plot_dendrogram.communities | Community structure dendrogram plots |

plot_dendrogram.igraphHRG | HRG dendrogram plot |

plot.igraph | Plotting of graphs |

plot.sir | Plotting the results on multiple SIR model runs |

plus-.igraph | Add vertices, edges or another graph to a graph |

power_centrality | Find Bonacich Power Centrality Scores of Network Positions |

predict_edges | Predict edges based on a hierarchical random graph model |

printer_callback | Create a printer callback function |

print.igraph | Print graphs to the terminal |

print.igraph.es | Print an edge sequence to the screen |

print.igraphHRG | Print a hierarchical random graph model to the screen |

print.igraphHRGConsensus | Print a hierarchical random graph consensus tree to the... |

print.igraph.vs | Show a vertex sequence on the screen |

printr | Better printing of R packages |

radius | Radius of a graph |

random_walk | Random walk on a graph |

read_graph | Reading foreign file formats |

realize_degseq | Creating a graph from a given degree sequence,... |

reciprocity | Reciprocity of graphs |

rep.igraph | Replicate a graph multiple times |

reverse_edges | Reverse edges in a graph |

rev.igraph.es | Reverse the order in an edge sequence |

rev.igraph.vs | Reverse the order in a vertex sequence |

rewire | Rewiring edges of a graph |

rglplot | 3D plotting of graphs with OpenGL |

r_pal | The default R palette |

running_mean | Running mean of a time series |

sample_ | Sample from a random graph model |

sample_bipartite | Bipartite random graphs |

sample_correlated_gnp | Generate a new random graph from a given graph by randomly... |

sample_correlated_gnp_pair | Sample a pair of correlated G(n,p) random graphs |

sample_degseq | Generate random graphs with a given degree sequence |

sample_dirichlet | Sample from a Dirichlet distribution |

sample_dot_product | Generate random graphs according to the random dot product... |

sample_fitness | Random graphs from vertex fitness scores |

sample_fitness_pl | Scale-free random graphs, from vertex fitness scores |

sample_forestfire | Forest Fire Network Model |

sample_gnm | Generate random graphs according to the G(n,m) Erdős-Rényi... |

sample_gnp | Generate random graphs according to the G(n,p) Erdős-Rényi... |

sample_grg | Geometric random graphs |

sample_growing | Growing random graph generation |

sample_hierarchical_sbm | Sample the hierarchical stochastic block model |

sample_hrg | Sample from a hierarchical random graph model |

sample_islands | A graph with subgraphs that are each a random graph. |

sample_k_regular | Create a random regular graph |

sample_last_cit | Random citation graphs |

sample_motifs | Graph motifs |

sample_pa | Generate random graphs using preferential attachment |

sample_pa_age | Generate an evolving random graph with preferential... |

sample_pref | Trait-based random generation |

sample_sbm | Sample stochastic block model |

sample_seq | Sampling a random integer sequence |

sample_smallworld | The Watts-Strogatz small-world model |

sample_spanning_tree | Samples from the spanning trees of a graph randomly and... |

sample_sphere_surface | Sample vectors uniformly from the surface of a sphere |

sample_sphere_volume | Sample vectors uniformly from the volume of a sphere |

sample_traits_callaway | Graph generation based on different vertex types |

sample_tree | Sample trees randomly and uniformly |

scan_stat | Scan statistics on a time series of graphs |

scg | All-in-one Function for the SCG of Matrices and Graphs |

scg_eps | Error of the spectral coarse graining (SCG) approximation |

scg_group | SCG Problem Solver |

scg-method | Spectral Coarse Graining |

scg_semi_proj | Semi-Projectors |

sequential_pal | Sequential palette |

set_edge_attr | Set edge attributes |

set_graph_attr | Set a graph attribute |

set_vertex_attr | Set vertex attributes |

shapes | Various vertex shapes when plotting igraph graphs |

similarity | Similarity measures of two vertices |

simplified | Constructor modifier to drop multiple and loop edges |

simplify | Simple graphs |

sir | SIR model on graphs |

spectrum | Eigenvalues and eigenvectors of the adjacency matrix of a... |

split_join_distance | Split-join distance of two community structures |

st_cuts | List all (s,t)-cuts of a graph |

st_min_cuts | List all minimum (s,t)-cuts of a graph |

stochastic_matrix | Stochastic matrix of a graph |

strength | Strength or weighted vertex degree |

subcomponent | In- or out- component of a vertex |

subgraph | Subgraph of a graph |

subgraph_centrality | Find subgraph centrality scores of network positions |

subgraph_isomorphic | Decide if a graph is subgraph isomorphic to another one |

subgraph_isomorphisms | All isomorphic mappings between a graph and subgraphs of... |

sub-.igraph | Query and manipulate a graph as it were an adjacency matrix |

sub-sub-.igraph | Query and manipulate a graph as it were an adjacency list |

tail_of | Tails of the edge(s) in a graph |

tkigraph | Experimental basic igraph GUI |

tkplot | Interactive plotting of graphs |

topo_sort | Topological sorting of vertices in a graph |

to_prufer | Convert a tree graph to its Prüfer sequence |

transitivity | Transitivity of a graph |

triad_census | Triad census, subgraphs with three vertices |

unfold_tree | Convert a general graph into a forest |

union | Union of two or more sets |

union.igraph | Union of graphs |

union.igraph.es | Union of edge sequences |

union.igraph.vs | Union of vertex sequences |

unique.igraph.es | Remove duplicate edges from an edge sequence |

unique.igraph.vs | Remove duplicate vertices from a vertex sequence |

upgrade_graph | igraph data structure versions |

V | Vertices of a graph |

vertex | Helper function for adding and deleting vertices |

vertex_attr | Query vertex attributes of a graph |

vertex_attr_names | List names of vertex attributes |

vertex_attr-set | Set one or more vertex attributes |

vertex_connectivity | Vertex connectivity |

vertex.shape.pie | Using pie charts as vertices in graph plots |

weighted_cliques | Functions to find weighted cliques, i.e. weighted complete... |

which_multiple | Find the multiple or loop edges in a graph |

which_mutual | Find mutual edges in a directed graph |

with_edge_ | Constructor modifier to add edge attributes |

with_graph_ | Constructor modifier to add graph attributes |

with_igraph_opt | Run code with a temporary igraph options setting |

without_attr | Construtor modifier to remove all attributes from a graph |

without_loops | Constructor modifier to drop loop edges |

without_multiples | Constructor modifier to drop multiple edges |

with_vertex_ | Constructor modifier to add vertex attributes |

write_graph | Writing the graph to a file in some format |

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