I need to calculate the closeness to all the vertices of a graph, but when you
run the method below, an error message is displayed:
<< Cygwin_exception :: open_stackdumpfile ... >>
U could kindly tell me what the cause of the error.
.h File
class TNetData {
private:
igraph_t net;MatrixXf date;VectorXi classes;float nSigma;float nEpsilon;int
nK;int NumberOfSamples;int numberOfFeatures;int numberOfClasses;distanceName
string;Distances dist;
public:
TNetData (string filename);TNetData ~ ();
void KNN (float sigma, int K);void wKNN (float sigma, int K);
void eCut (sigma float, float epsilon);void weCut (sigma float, float epsilon);
void Post1NN (float sigma);PostSupervised void ();
SaveSimulation void (int yes);SaveNetwork void ();void MatrixOfWeights (float
sigma);SaveNetMeasures void (int yes);
void SetDistance (string distance);igraph_t GetNetwork * ();// * MatrixXf
GetData ();
igraph_vector_t Closeness (igraph_t * net, int numVertices);};
#endif / * NETDATA_H_ * /
Cpp file
igraph_vector_t TNetData :: Closeness (igraph_t * net, int numVertices) {
igraph_vector_t result_Closeness; igraph_vector_t id_Vertices;
igraph_vs_t vs; // Igraph_vit_t it; igraph_integer_t i, position, id;
igraph_vector_init (& id_Vertices, numVertices); igraph_vector_null (&
id_Vertices);
igraph_vs_all (& vs);
// Igraph_vit_create (net, vs, & it);
igraph_closeness (net, & result_Closeness, vs, IGRAPH_ALL, 0.0);
for (i = 0; i <igraph_vector_size (& id_Vertices); i ++) { position
= igraph_vector_which_max (& result_Closeness); igraph_vector_set (&
result_Closeness, position, 0.0); id = VAN (net, "index" position);
igraph_vector_set (& id_Vertices, i, id); }
igraph_vector_destroy (& result_Closeness); igraph_vs_destroy (& vs);
// Igraph_vit_destroy (& it);
return (id_Vertices);}
igraph_t *TNetData::GetNetwork(){return & net;}
Main Program
id_Vertices = network-> Closeness (network-> GetNetwork (), numVertices);
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