I am trying to read a file with 3 columns with col 1 and 2 as nodes/edges and
column 3 as weight (value with decimal)
I am trying to execute this code
import networkx as nx
G = nx.read_edgelist('file.txt', data=[("weight")])
G.edges(data=True)
edge_labels = dict(((u, v), d["weight"]) for u, v, d in G.edges(data=True))
pos = nx.random_layout(G)
nx.draw(G, pos)
nx.draw_networkx_edge_labels(G, pos, edge_labels=edge_labels)
import matplotlib.pyplot as plt; plt.show()
Error:
File "graph_one.py", line 4, in <module>
G = nx.read_edgelist('File.txt', data=[("weight")])
File "<string>", line 2, in read_edgelist
File
"/usr/local/lib/python2.7/dist-packages/networkx-1.7-py2.7.egg/networkx/utils/decorators.py",
line 241, in _open_file
fobj = _dispatch_dict[ext](path, mode=mode)
IOError: [Errno 2] No such file or directory: 'contactUSC_nodes_diff_small.txt'
lavanya@peerformance:~/Desktop/INRIA_Papers/Python$ python graph_one.py
Traceback (most recent call last):
File "graph_one.py", line 4, in <module>
G = nx.read_edgelist('contactUSC_node_diff_small.txt', data=[("weight")])
File "<string>", line 2, in read_edgelist
File
"/usr/local/lib/python2.7/dist-packages/networkx-1.7-py2.7.egg/networkx/utils/decorators.py",
line 263, in _open_file
result = func(*new_args, **kwargs)
File
"/usr/local/lib/python2.7/dist-packages/networkx-1.7-py2.7.egg/networkx/readwrite/edgelist.py",
line 367, in read_edgelist
data=data)
File
"/usr/local/lib/python2.7/dist-packages/networkx-1.7-py2.7.egg/networkx/readwrite/edgelist.py",
line 286, in parse_edgelist
for (edge_key,edge_type),edge_value in zip(data,d):
ValueError: too many values to unpack
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