Saving a graph with edges and nodes

Hi All,

I have the following graph with nodes and edges. This graph is creadted in a function defined in file create.m. Can this graph be stored and access in

another file , another.m (for instance, I'd like to assign weights to the edges of the graph in another file)?

I understand I can call the function defined in create.m from another.m. However, I don't want to do this. Instead, I prefer saving the graph object and accessing it in other

files.

NNode = 11;
tail = 1:NNode-1;
head = 2:NNode;
Graph = graph(tail,head);
plot(Graph);

Answer 1

[Stephan]

You can not save a workspace object in a .m-file. Use a .mat-file instead to save your graph. You can load this in other scripts to work with.

[Deepa Maheshvare]

Thanks a lot for the response.

I did try using .mat

save('Graph.mat', 'Graph')
>> Graph = load('Graph.mat')

Graph = 

  struct with fields:

    Graph: [1×1 graph]

I could access the nodes and edges properties using

>> height(Graph.Graph.Edges).

However, when

    save('Graph.mat', '-struct',  'Graph')

is used, I get the following error

Error using save
The argument to -STRUCT must be the name of a scalar structure variable.

Error in create_graph (line 14)
save('Graph.mat', '-struct', 'Graph')

[Stephan]

Note that a graph object is not a struct - thus you can not do it this way.