How to rename a graph node labels ?

Using graph plot, the nodes are assigned numbers from 1: n. How to rename all the 'n; nodes

[KSSV]

Any example to demonstrate?

Answer 1

[Steven Lord]

Let's take a sample graph and look at it.

[B, V] = bucky;
B10 = B(1:10, 1:10);
V10 = V(1:10, :);
G = graph(B10);
plot(G, 'XData', V10(:, 1), 'YData', V10(:, 2), 'ZData', V10(:, 3));

Look at the Nodes table of the graph G.

G.Nodes

ans =

  10×0 empty table

If that table had a variable Name, those would be the names of the nodes. [See the Add Node Names section on this documentation page.] If it did you could modify one element of that variable to change the name of one node. In this case since it doesn't have that variable you can add it to the table.

G2 = G;
G2.Nodes.Name = ["alpha"; "beta"; "gamma"; "delta"; "epsilon"; ...
    "zeta"; "eta"; "theta"; "iota"; "kappa"];
figure
plot(G2, 'XData', V10(:, 1), 'YData', V10(:, 2), 'ZData', V10(:, 3));

G2.Nodes

ans = 10×1 table
       Name    
    ___________

    {'alpha'  }
    {'beta'   }
    {'gamma'  }
    {'delta'  }
    {'epsilon'}
    {'zeta'   }
    {'eta'    }
    {'theta'  }
    {'iota'   }
    {'kappa'  }

Or if you just wanted to change the labels in the plot, use labelnode.