Incidence matrix of a graph

Hello,

Is there any way to create a incidence matrix of a graph. For example, for IEEE 7-bus system I have branch data like this:

1 2

2 3

2 7

2 6

3 6

3 4

4 7

4 5

And I need incidence matrix to be like this:

Or, maybe better solution, to give me numbers of nodes which are mutualy connected, for example

1 2 (node 1 is connected to node 2)

1 2 3 6 7 (node 2 is connected to nodes 1, 3, 6, 7)

2 3 4 6 (node 3 is connected to nodes 2, 4 and 6)

etc.

Thanks!!!

Answer 1

[Walter Roberson]

If you have constructed a graph() object named G, then

full(G.adjacency)

[Vlad Bec]

I just have those two columns( from node and to node) in Excel like in example

[Walter Roberson]

G = graph(from_node, to_node);
adj = full(G.adjacency);

[Vlad Bec]

Thank you a lot!

[djibeyrou ba]

Hello I have the same problem. I am using IEEE6-bus system. I would like to calculate the incidence matrix from MATLAB. Can you help me? I want to get the result showed in the picture.