Create a network from an edgelist
In this exercise, you will create a network from an edgelist.
You will create an igraph
object from data stored in an edgelist using the function graph_from_data_frame()
. The data is a social network of customers and each row of the edgeList
dataframe represents an edge in the network. The edges in this network are undirected and have weight 1. This is indicated by the directed
argument of the function, which is logical so the value FALSE
means that the network is undirected.
The igraph
package has been loaded for you.
This exercise is part of the course
Predictive Analytics using Networked Data in R
Exercise instructions
- Inspect the first rows of the
edgeList
dataframe using thehead()
function. - Create an
igraph
object callednetwork
with theedgeList
dataframe using thegraph_from_dataframe()
function. Use the logicaldirected
argument to specify that the network is undirected. - Inspect the
igraph
object you created by calling its name.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Inspect edgeList
head(___)
# Construct the igraph object
network <- graph_from_data_frame(___, directed = ___)
# View your igraph object
___