Question on using addedge()

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Deepa Maheshvare
Deepa Maheshvare 2018-12-14
评论： Steven Lord 2018-12-14
How do we use addedge to assign weights to a graph containing edges with multiple edge weigths(Value1 and Value2, in my example)?
tail = [1 2 3 4];
head = [2 3 4 5];
G = graph(tail,head)
G.Edges.Value1 = ones(4,1)
G.Edges.Value2 = zeros(4,1)
G = addedge(G,5,6,1) %I want to assign 1 to Value1 to the new edge created between nodes 5,6
I obtain the following error.
Error using graph/addedge (line 139)
Unable to add weighted edges to an unweighted graph.
Any suggestions?
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Deepa Maheshvare
Deepa Maheshvare 2018-12-14
编辑：Deepa Maheshvare 2018-12-14
I meant, assigning a value of 1 to the newly added edge in the edge property named Value1 (here->G.Edges.Value1 = ones(4,1))
Deepa Maheshvare
Deepa Maheshvare 2018-12-14
编辑：Deepa Maheshvare 2018-12-14
Let's say the graph is weighted, then H = addedge(G,s,t,w) works for Graph.Edges.Weight.
I'm trying to do the same for custom attributes (Graph.Edges.Value1) and I couldn't succeed.
Hope I was able to explain the problem

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采纳的回答

Jan
Jan 2018-12-14
编辑：Jan 2018-12-14
Do you mean:
G = addedge(G,5,6)
G.Edges.Value1 = ones(5,1)
Or
T = table(1, 0, 'VariableNames', {'Value1', 'Value2'});
G = addedge(G, 5, 6, T)
  1 个评论
Steven Lord
Steven Lord 2018-12-14
Or you can build a table with variables EndNodes and your custom attribute names and call addedge with the graph and the table as the two inputs. The "Add Edges with Attributes to Graph" example on the addedge documentation page shows how to do this.

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