How to remove node in networkx?

Question

I have a dataset that I upload as a graph for different timeframes and try to determine the relationship between them.

I want to delete all nodes that do not have edges, but I'm not sure if the command removes or removes nodes. Any idea how to do this?

Answer 1

import networkx as nx import matplotlib.pyplot as plt G=nx.Graph() G.add_edges_from([('A','B'),('A','C'),('B','D'),('C','D')]) nx.draw(G) plt.show() 

 G.remove_node('B') nx.draw(G) plt.show() 

To remove multiple nodes, there is also a Graph.remove_nodes_from () method.

Answer 2

The documentation covers it.

Graph.remove_node (n): remove node n.

Graph.remove_nodes_from (nodes): delete several nodes.

For instance:

 In : G=networkx.Graph() In : G.add_nodes_from([1,2,3]) In : G.nodes() Out: [1, 2, 3] In : G.remove_node(2) In : G.nodes() Out: [1, 3]