Introduction: drawing and plotting
• It is possible to draw small graphs with NetworkX. You can export network data
and draw with other programs (GraphViz, Gephi, etc.).
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Introduction: NetworkX official website
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http://networkx.github.io/
2. Getting started with Python and NetworkX
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Getting started: the environment
• Start Python (interactive or script mode) and import NetworkX
• Different classes exist for directed and undirected networks. Let’s create a basic
undirected Graph:
• The graph g can be grown in several ways. NetworkX provides many generator
functions and facilities to read and write graphs in many formats.
$ python >>> import networkx as nx >>> g = nx.Graph() # empty graph 13
Getting started: adding nodes
# One node at a time >>> g.add_node(1) # A list of nodes >>> g.add_nodes_from([2, 3]) # A container of nodes >>> h = nx.path_graph(5) >>> g.add_nodes_from(h) # You can also remove any node of the graph >>> g.remove_node(2) 14
Getting started: node objects
• A node can be any hashable object such as a string, a function, a file and more.
