I'd like to use the "add_edge_list" function to add edges to my graph, and
simultaneously assign a value for an edge property map for each of the added
edges.
When I try the following example (with no edge property map information)
works fine:
elist1 = np.array([[0,1], [1, 2]]) #edge list with no value for edge
property map data (only the source and target for the edges)
g = gt.Graph()
my_eprop = g.new_edge_property('bool')
g.add_edge_list(elist)
But with the following example, I get the error below:
elist2 = np.array([[0,1, 1], [1, 2, 0]]) #edge list with edge property map
value in 3rd column
g = gt.Graph()
my_eprop = g.new_edge_property('bool')
g.add_edge_list(elist2, eprops=my_eprop)
Error:
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<ipython-input-48-6a949ea52c9b> in <module>()
----> 1 g.add_edge_list(elist2, eprops=my_eprop)
/usr/lib/python2.7/dist-packages/graph_tool/__init__.pyc in
add_edge_list(self, edge_list, hashed, string_vals, eprops)
1969 eprops = ()
1970 else:
-> 1971 convert = [_converter(x.value_type()) for x in eprops]
1972 eprops = [_prop("e", self, x) for x in eprops]
1973 if not isinstance(edge_list, numpy.ndarray):
/usr/lib/python2.7/dist-packages/graph_tool/__init__.pyc in
__getitem__(self, k)
534 kt = "Graph"
535 raise ValueError("invalid key '%s' of type '%s',
wanted type: %s"
--> 536 % (str(k), str(type(k)), kt) )
537
538 def __setitem__(self, k, v):
ValueError: invalid key '0' of type '<type 'int'>', wanted type: Edge
---------------------------------------------------------------------------
Please help!
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