Package index • igraphlite

R Interface

is_igraph(): igraph_ptr: cpp11-powered class for igraph objects

as_igraph() as.data.frame(<igraph_ptr>) as.matrix(<igraph_ptr>): Convert igraph objects to and from other formats.

graph_from_data_frame() graph_from_symbolic_edgelist() graph_from_edgelist(): Convert edge lists to igraph objects.

Basic Interface

https://igraph.org/c/doc/igraph-Basic.html

graph_empty() graph_copy(): Graph constructors

vcount() ecount() is_directed(): Basic query operations

edge() neighbors() incident() degree(): Basic query operations to get adjacency

add_edges() add_vertices() delete_edges() delete_vertices(): Adding and deleting vertices and edges

Data Structure

https://igraph.org/c/doc/igraph-Data-structures.html

as_adjlist() as_inclist(): Adjacency lists and incidence lists

Random numbers

https://igraph.org/c/doc/igraph-Random.html

igraph_rng_seed(): Seeds a random number generator

Graph Generators

https://igraph.org/c/doc/igraph-Generators.html

Deterministic Graph Generators

graph_create(): Create a graph with the specified edges

graph_star(): Create a star graph

graph_square_lattice() graph_ring(): Create arbitrary dimensional lattices

graph_kary_tree(): Create a tree graph

graph_full(): Create a full graph (complete graph)

graph_famous(): Create a famous graph by simply providing its name

Attributes of Graph, Vertices, and Edges

https://igraph.org/c/doc/igraph-Attributes.html

Vattr() `Vattr<-`() Eattr() `Eattr<-`() V() E(): Get and set vertex and edge attributes

Vnames() as_vids() as_vnames(): Conversion between vertex IDs and names

igraph_from() igraph_to(): Quick access to edge list columns

Structural Properties

https://igraph.org/c/doc/igraph-Structural.html

are_adjacent(): Basic Properties

distances() average_path_length() path_length_hist(): Distance-related Functions

get_shortest_paths() get_all_shortest_paths() get_all_simple_paths(): Shortest Path Related Functions

neighborhood_size() neighborhood(): Neighborhood of vertices

subcomponent() subcomponents(): Graph Components

edge_betweenness() edge_betweenness_subset(): Centrality measures

Generating Layouts for Graph Drawing

https://igraph.org/c/doc/igraph-Layout.html

layout_random() layout_drl() layout_fruchterman_reingold() layout_mds(): 2D layout generators

layout_reingold_tilford() layout_reingold_tilford_circular(): Layouts for trees and acyclic graphs

layout_nicely(): Choose a layout algorithm automatically

augment(<igraph_ptr>) plot(<igraph_ptr>): Methods for quick visualization

Miscellaneous operators

https://igraph.org/c/doc/igraph-Operators.html

induced_subgraph() induced_subgraph_edges() subgraph_from_edges(): Miscellaneous operators

https://igraph.org/c/doc/igraph-Nongraph.html

igraph_version(): Get the version of the igraph C library

common_params(): Common parameters used throughout the package

Other Packages

as_igraph(<phylo>) as_phylo(): Conversion between phylo and igraph

as_igraph(<tbl_tree>) as_tbl_tree(): Conversion between tbl_tree and igraph

is_sink() is_source() Vsink() Vsource(): Shortcuts to get sink/source vertices.

find_common_ancestors() upstream_vertices(): Experimental functions