Error ploting a graph with EdgeTable

but, trying

G=graph(EdgeTable)

plotgraph=plot(G,'EdgeLabel',EdgeName)

The Result is

The Nodes are correctly conected, but de EdgeNames are wrong.

am i doing something wrong, or the program just is plotting de edge names wrong?

Answer 1

[Adam Danz]

Correct way to include labels

Following this example, you must include the edge labels when you construct the graph object by including the 'code' column in the EdgeTable table and then using the graph object output to specify the labels during plotting.

code = {'a' 'b' 'c' 'd' 'e' 'f' 'g' 'h' 'i'}'; %your SC-## strings
EdgeTable = table([1 2;3 4;6 7;4 8;9 10; 4 11; 12 13; 13 14; 4 14],code,'VariableNames', {'EndNodes','code'});
G = graph(EdgeTable); 
plot(G,'EdgeLabel', G.Edges.code)

Why your method didn't work

If you look at the values stored in your graph object, you'll see that the edges have been rearranged from your input order. When you assigned the edge labels (in the original order) during plotting, they no longer corresponded to the order in the graph object table.

% Incorrect method of edge labeling
EdgeTable = table([1 2;3 4;6 7;4 8;9 10; 4 11; 12 13; 13 14; 4 14],'VariableNames', {'EndNodes'});
G=graph(EdgeTable)

G.Edges
ans = 
  9×1 table
    EndNodes                  YOUR INPUTS
    ________                 _____________
     1     2                  1    2
     3     4                  3    4
     4     8                  6    7
     4    11                  4    8
     4    14                  9    10
     6     7                  4    11
     9    10                  12   13
    12    13                  13   14
    13    14                  4    14