ComeçarComece de graça

Counting vertices and edges

A lot of basic information about a network can be extracted from an igraph object. In this exercise you will learn how to count the vertices and edges from a network by applying several functions to the graph object g.

Each row of the friends dataframe represents an edge in the network.

Este exercício faz parte do curso

Network Analysis in R

Ver curso

Instruções do exercício

  • Use V() and E() to view the vertices and edges respectively of the network.
  • Use gsize() to count the number of edges in a network.
  • Use gorder() to count the number of vertices in a network.

Exercício interativo prático

Experimente este exercício completando este código de exemplo.

# Load igraph
library(igraph)

# Subset vertices and edges
V(___)
E(___)

# Count number of edges
gsize(___)

# Count number of vertices
____(g)
Editar e executar o código