Im not able to find the error

This is my code , im trying to develop an ANN model for solar radiation prediction , Im getting the error Dimensions of arrays being concatenated are not consistent. I dont know which line the error is help someone . Thanks in advance

G_T=xlsread(fileName, sheetName , 'B3:B39999');
M=xlsread(fileName, sheetName , 'AO3:AO39999');
D=xlsread(fileName, sheetName , 'AN3:AN39999');
H=xlsread(fileName, sheetName , 'A3:A39999');
G_T_Test=xlsread(fileName, sheetName , 'B40000:B44641');
M_Test=xlsread(fileName, sheetName , 'AO40000:AO44641');
D_Test=xlsread(fileName, sheetName , 'AN40000:AN44641');
H_Test=xlsread(fileName, sheetName , 'A40000:A44641');
%------------
inputs = [M,D,H];
I=inputs;
targets= [G_T];
T=targets;
%-------ann Model development and training
net = newff(I,T,5);
Y = sim(net,I);
net.trainParam.epochs = 100;
net = train(net,I,T);
%------------testing the developed model--------
test=[M_Test,D_Test,H_Test];
Test1=test;
G_Mi = sim(net,Test1);
G_M= G_Mi;
%-------------------
G_Tp=[  ];
for i=1:1:length(G_M)
G_Tp=[G_Tp ; G_M(i,1)];
end
G_Tp;
plot (G_T_Test)
hold on
plot(G_Tp,'red')

This is my code

[Matt J]

The error message (which you have not shown us) should tell you which line the error occurred at.

[Vidhyashankar V]

It says error using horizontal concatenation couldn't find where it is

[KSSV]

When error is printed on screen, it shows line number. That is what you are suppsoed to tell us. Else copy the whole error message here.

Is this line there is a error?

inputs = [M,D,H];

Check the dimensions of each.

[Vidhyashankar V]

Yup I used db stop if error and just found out the error is at that line .. thanks mate !

Answer 1

[KSSV]

Xlsread has become obselete. You should try readtable.

T = readtable(myfile) ;

From T you can pick any column, index you want. This makes your life more easy. You can straight away pick the data you want and you can avoid such errors like joining data.

[Vidhyashankar V]

ill try that , The H in the code refers to hours so when i try to import the data to matlab it gets converted to decimals and somehow one value goes missing thats why im getting that error.

[KSSV]

MATLAB got good support for datetime......you can explore thos options.