numnodes

Number of nodes in graph

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Syntax

N = numnodes(G)

Description

N = numnodes(G) returns the number of nodes in graph G.

example

Examples

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Open Live Script

Use the bucky adjacency matrix to create a directed graph, and then determine how many nodes the graph contains.

G = digraph(bucky)
G = 
  digraph with properties:

    Edges: [180×2 table]
    Nodes: [60×0 table]


N = numnodes(G)
N = 
60

Input Arguments

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Input graph, specified as either a graph or digraph object. Use graph to create an undirected graph or digraph to create a directed graph.

Example: G = graph(1,2)

Example: G = digraph([1 2],[2 3])

Output Arguments

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Number of nodes, returned as a scalar.

Extended Capabilities

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C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Thread-Based Environment
Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool.

Version History

Introduced in R2015b

See Also

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