Error using matlab.int​ernal.grap​h.construc​tFromEdgeL​ist (line 249) Weight must have as many elements as edge list or be a scalar.

%THIS IS MY CODE:
filename = 'TABLA_AF1.xlsx';
s = xlsread(filename,'A2:A25');
t = xlsread(filename,'B2:B25');
weights = xlsread(filename,'C2:C25');
G = graph(s,t,weights);
p = plot(G,'EdgeLabel',G.Edges.Weight);
[T,pred] = minspantree(G);
highlight(p,T)

And the file Tabla_AF1.xlsx, contains this 3 rows:

Nodo Inicial Nodo Final Distancia

A B 2

A E 16

A C 3

C F 3

C I 12

F E 7

F I 9

F H 6

I H 14

E H 2

E G 4

B E 8

B D 11

D E 2

D G 5

D J 7

G J 1

G L 6

H G 3

J L 12

H L 17

I K 7

H K 9

K L 17

How can I fix it??? please

[Christine Tobler]

Looks like something is going wrong in xlsread most likely. Can you display the values of s, t, weights? These should be three vectors of equal length, and the error message from graph says that they are not.

I don't know much about xlsread, perhaps its documentation can help further.

[Walter Roberson]

https://www.mathworks.com/matlabcentral/answers/333163-error-when-running-g-graph-s-t-in-matlab#comment_1826524

has the solution.

[lol]

thank you so much!!