Hello,
I have a problems using a loaded graphml graph.
my graphml look like this:
///////
<?xml version="1.0" encoding="UTF-8"?>
<graphml xmlns="http://graphml.graphdrawing.org/xmlns"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://graphml.graphdrawing.org/xmlns
http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd">
<key id="key0" for="node" attr.name="ref" attr.type="long" />
<key id="key1" for="edge" attr.name="weight" attr.type="double" />
<graph id="G" edgedefault="undirected" parse.nodeids="canonical"
parse.edgeids="canonical" parse.order="nodesfirst">
<node id="n0">
<data key="key0">0</data>
</node>
<node id="n1">
<data key="key0">1</data>
</node>
////////
<edge id="e0" source="n0" target="n1">
<data key="key1">0.1</data>
</edge>
<edge id="e1" source="n0" target="n16">
<data key="key1">1.08661</data>
</edge>
<edge id="e2" source="n0" target="n205">
<data key="key1">1.17957</data>
</edge>
////////
// What I do
g_uDirG = Graph(directed=False)
eprop_ang_weight = g_uDirG.new_edge_property("float")
g_uDirG = load_graph(xml_filename)
// Prints about the loaded graph
Num of Nodes
7269
Num of Edges
16526
ref (vertex) (type: int64_t)
weight (edge) (type: long double)
////
// copy the edge weights
eprop_ang_weight = g_uDirG.edge_properties["weight"]
// run betweenness
graph_tool.centrality.betweenness(g_uDirG, vprop=vprop_betweenness,
weight=eprop_ang_weight , norm=False)
///////////
The problem is that I get '0' in the distances of shortest paths and I get
betweeness 'nan' for all vertices.
What am I missing?
Thanks
T