Develop an ANN model getting concatenation erro help

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

Answer 1

[Devineni Aslesha]

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.

https://www.mathworks.com/help/matlab/math/creating-and-concatenating-matrices.html

[Vidhyashankar V]

yup i figured it out . thank you