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- """
- ==========
- Self-loops
- ==========
- A self-loop is an edge that originates from and terminates the same node.
- This example shows how to draw self-loops with `nx_pylab`.
- """
- import networkx as nx
- import matplotlib.pyplot as plt
- # Create a graph and add a self-loop to node 0
- G = nx.complete_graph(3, create_using=nx.DiGraph)
- G.add_edge(0, 0)
- pos = nx.circular_layout(G)
- # As of version 2.6, self-loops are drawn by default with the same styling as
- # other edges
- nx.draw(G, pos, with_labels=True)
- # Add self-loops to the remaining nodes
- edgelist = [(1, 1), (2, 2)]
- G.add_edges_from(edgelist)
- # Draw the newly added self-loops with different formatting
- nx.draw_networkx_edges(G, pos, edgelist=edgelist, arrowstyle="<|-", style="dashed")
- plt.show()
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