[igraph] Using basic querry commands for Igraph

[ketan bhardwaj]

Hello all,

 

This is what i am doing :

Create a graph using

igraph_read_graph_edgelist()

 

and counting the number of edges using igraph_ecount() but getting zero.

 

here are the contents of file i am using

0 1 0 2 0 3 0 4 0 5 1 2 2 1 2 3 3 2 2 4 4 2 3 4 4 3

 

Here are the contents of the file which i get from igraph_write_graph_edgelist()

0 1

0 2

0 3

0 4

0 5

1 2

2 1

2 3

2 4

3 2

3 4

4 2

4 3

i think this is exactly right but why am i not be able to get the number of vertices.? any help.

 

regards

ketan
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