NetworkX 1.5#
Release date: 4 June 2011
Highlights#
New features#
Algorithms for
generating
andanalyzing
bipartite graphs
Maximal independent set
algorithmMore memory efficient
Dijkstra path length
with cutoff parameterRead and write version 1.2 of
GEXF reader
format
Neighbor degree correlation
that handle subsets of nodesMany ‘weighted’ graph algorithms now take optional parameter to use specified edge attribute (default=’weight’) (ticket https://networkx.lanl.gov/trac/ticket/509)
Test for
distance regular
graphsFast
directed Erdős-Renyi graph
generatorFast
expected degree graph
generator
Navigable small world
generator
Waxman model
generator
Geographical threshold graph
generator
Karate Club, Florentine Families, and Davis' Women's Club
graphs
Weighted graph algorithms#
Many ‘weighted’ graph algorithms now take optional parameter to specify which edge attribute should be used for the weight (default=’weight’) (ticket https://networkx.lanl.gov/trac/ticket/509)
In some cases the parameter name was changed from weighted_edges, or weighted, to weight. Here is how to specify which edge attribute will be used in the algorithms:
Use weight=None to consider all weights equally (unweighted case)
Use weight=True or weight=’weight’ to use the ‘weight’ edge attribute
Use weight=’other’ to use the ‘other’ edge attribute
Algorithms affected are:
betweenness_centrality, closeness_centrality, edge_betweenness_centrality, betweenness_centrality_subset, edge_betweenness_centrality_subset, betweenness_centrality_source, load, closeness_vitality, weiner_index, spectral_bipartivity current_flow_betweenness_centrality, edge_current_flow_betweenness_centrality, current_flow_betweenness_centrality_subset, edge_current_flow_betweenness_centrality_subset, laplacian, normalized_laplacian, adj_matrix, adjacency_spectrum, shortest_path, shortest_path_length, average_shortest_path_length, single_source_dijkstra_path_basic, astar_path, astar_path_length
Random geometric graph#
The random geometric graph generator has been simplified. It no longer supports the create_using, repel, or verbose parameters. An optional pos keyword was added to allow specification of node positions.
Bug fixes#
Fix edge handling for multigraphs in networkx/graphviz interface (ticket https://networkx.lanl.gov/trac/ticket/507)
Update networkx/pydot interface for new versions of pydot (ticket https://networkx.lanl.gov/trac/ticket/506) (ticket https://networkx.lanl.gov/trac/ticket/535)
Fix negative cycle handling in Bellman-Ford (ticket https://networkx.lanl.gov/trac/ticket/502)
Write more attributes with GraphML and GML formats (ticket https://networkx.lanl.gov/trac/ticket/480)
Handle white space better in read_edgelist (ticket https://networkx.lanl.gov/trac/ticket/513)
Better parsing of Pajek format files (ticket https://networkx.lanl.gov/trac/ticket/524) (ticket https://networkx.lanl.gov/trac/ticket/542)
Isolates functions work with directed graphs (ticket https://networkx.lanl.gov/trac/ticket/526)
Faster conversion to numpy matrices (ticket https://networkx.lanl.gov/trac/ticket/529)
Add graph[‘name’] and use properties to access Graph.name (ticket https://networkx.lanl.gov/trac/ticket/544)
Topological sort confused None and 0 (ticket https://networkx.lanl.gov/trac/ticket/546)
GEXF writer mishandled weight=0 (ticket https://networkx.lanl.gov/trac/ticket/550)
Speedup in SciPy version of PageRank (ticket https://networkx.lanl.gov/trac/ticket/554)
Numpy PageRank node order incorrect + speedups (ticket https://networkx.lanl.gov/trac/ticket/555)