Package index • igraphlite

Basic Interface

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

igraph_ptr: igraph_ptr class: thin wrapper of igraph_t.

is_igraph(): Check if an object is igraph_ptr class

vcount() ecount() igraph_from() igraph_to() edge() neighbors() incident() is_directed() degree() add_vertices() add_edges() delete_vertices() delete_edges(): Basic Query Operations

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

Data Structure

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

as.data.frame(<igraph_ptr>) as.matrix(<igraph_ptr>) print(<igraph_ptr>): S3 methods to get and view internal data.

as_adjlist() as_inclist(): Adjacency lists

Graph Generators

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

graph_create() graph_star() graph_lattice() graph_ring() graph_tree() graph_full() graph_famous(): Deterministic Graph Generators

as_igraph() graph_from_data_frame() graph_from_symbolic_edgelist() graph_from_edgelist(): Create graph from R objects

Structural Properties

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

are_adjacent(): Basic Properties

distances() get_shortest_paths() get_all_shortest_paths() get_all_simple_paths() average_path_length() path_length_hist(): Shortest Path Related Functions

neighborhood_size() neighborhood(): Neighborhood of vertices

subcomponent() subcomponents(): Graph Components

edge_betweenness() edge_betweenness_subset(): Centrality measures

Attributes of Graph, Vertices, and Edges

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

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

Generating Layouts for Graph Drawing

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

layout_nicely() layout_random() layout_drl() layout_fruchterman_reingold() layout_mds() layout_reingold_tilford() layout_reingold_tilford_circular(): Layouts for Graph Drawing

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

Random numbers

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

igraph_rng_seed(): Random numbers

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(): Check and return igraph version.h

common_params(): Common parameters used throughout the package

find_common_ancestors() upstream_vertices(): Experimental functions

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