[Jung-support] [jung - Open Discussion] GraphStatistics.clusteringCoefficients

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By: nobody

Hello,
May be this is a stupid question...but I don't unterstand your example of the
clusterting Coefficient:

Here is the implementation of the network:

 StringBuffer buffer= new StringBuffer();
        buffer.append("<?xml version=\"1.0\" encoding=\"iso-8859-1\" ?>\n");
        buffer.append("<graph edgedefault=\"undirected\">\n");
        buffer.append("<node id=\"1\"/>\n");
        buffer.append("<node id=\"2\"/>\n");
        buffer.append("<node id=\"3\"/>\n");
        buffer.append("<node id=\"4\"/>\n");
        buffer.append("<node id=\"5\"/>\n");
        buffer.append("<node id=\"6\"/>\n");
        buffer.append("<edge source=\"1\" target=\"2\"/>\n");
        buffer.append("<edge source=\"1\" target=\"6\"/>\n");
        buffer.append("<edge source=\"1\" target=\"4\"/>\n");
        buffer.append("<edge source=\"1\" target=\"5\"/>\n");
        buffer.append("<edge source=\"2\" target=\"6\"/>\n");
        buffer.append("<edge source=\"4\" target=\"5\"/>\n");
        buffer.append("<edge source=\"4\" target=\"3\"/>\n");
        buffer.append("<edge source=\"6\" target=\"3\"/>\n");
        buffer.append("</graph>\n");

And here is my implementation:

Map map = GraphStatistics.clusteringCoefficients((Graph)graph);
        if((map == null)||map.size() == 0)
            return -1;
        
        Iterator keySet = map.keySet().iterator();
        while ( keySet.hasNext() ) {
            System.out.println(keySet.next().getClass());
            Vertex v = (Vertex) keySet.next();
            System.out.println(v.toString());

The resut of this output looks like this...

class edu.uci.ics.jung.graph.impl.SparseVertex
V6
class edu.uci.ics.jung.graph.impl.SparseVertex
V8
class edu.uci.ics.jung.graph.impl.SparseVertex
V10

But why does the method return Node V6, V8 and V10??
I expect and double value of the Cluster Coeffizient of the Node or of the whole
network...

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