[igraph] igraph_path_length_hist()

[zhengjun chen]

Hi,

I am using igraph_path_length_hist() to get the path length histogram. It always shows "segment default". 

My code looks likes as follows:

    

      igraph_vector_init(&hist_path, 0);

     igraph_path_length_hist(&graph, &hist_path, NULL, 0);    

     size = igraph_vector_size(&hist_path);

     printf("size is:%d\n", (int)size);

     int i;

     for (i=0; i<size; i++)

       printf("hist length: %d\n", (int)VECTOR(hist_path)[i]);

I do not know where is wrong. Another question is about path length hist. Is it the path length distribution. That is, the number of paths with length 1, 2,... 

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Thanks