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Develop an ANN model getting concatenation erro help

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fileName = '2017-07.xlsx';
sheetName = 'Sheet1' ;
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,2)];
end
G_Tp;
plot (G_T_Test)
hold on
plot(G_Tp,'red')
Error using horzcat
Dimensions of arrays being concatenated are not consistent.
I dont know where, help. Thanks in advance

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Accepted Answer

Devineni Aslesha
Devineni Aslesha on 26 Aug 2020
Assuming that the error 'Dimensions of arrays being concatenated are not consistent' is in the line inputs = [M,D,H] or test =[M_Test,D_Test,H_Test]; is due to that the matrices that are concatenated do not have the same number of rows.
For more information on concatenating matrices, refer the following link.

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