Examples

To help you to get started with Graphs.jl, here is a simple example:

julia> using Graphs

julia> g = simple_graph(3)
Directed Graph (3 vertices, 0 edges)

julia> add_edge!(g, 1, 2)
edge [1]: 1 -- 2

julia> add_edge!(g, 3, 2)
edge [2]: 3 -- 2

julia> add_edge!(g, 3, 1)
edge [3]: 3 -- 1

julia> plot(g)

We can also generate simple graphs with graph generators. For example:

julia> g2 = simple_cubical_graph()
Undirected Graph (8 vertices, 12 edges)

and check the number of vertices and edges with:

julia> num_vertices(g2)
8

julia> num_edges(g2)
12

We can use an adjacency matrix to represent g2:

julia> adjacency_matrix(g2)
8x8 Array{Bool,2}:
false   true  false   true   true  false  false  false
true  false   true  false  false  false  false   true
false   true  false   true  false  false   true  false
true  false   true  false  false   true  false  false
true  false  false  false  false   true  false   true
false  false  false   true   true  false   true  false
false  false   true  false  false   true  false   true
false   true  false  false   true  false   true  false