Saving a graph with edges and nodes

Question

Deepa Maheshvare 2019-9-7

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评论： Stephan 2019-9-9

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);

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Answer 1

Stephan 2019-9-7

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https://ww2.mathworks.cn/matlabcentral/answers/479276-saving-a-graph-with-edges-and-nodes#answer_390760

编辑：Stephan 2019-9-7

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.

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Deepa Maheshvare 2019-9-7

在 MATLAB Online 中打开

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')