Fully connected neural network invalid training data: Responses must be categorical sequences Follow

rameshsingh asked: 2021-06-14 deep learning , matlab , programming , simulink

Fix Fully Connected Neural Network Invalid Training Data Responses errors in MATLAB. Learn how to format categorical sequences for successful training. Get so

Expert Answer

Kshitij Singh answered . 2025-07-30 13:11:24

The network recieved input training data as a 4000x1 cell of 12x5 matrices and responses as a 4000x1 cell of 1x1 categorical lables (0 or 1). As the input has dimension 12 for each of the features and a sequence of 5, the response must also have a sequence of 5, hence the response 4000x1 cell should contain 1x5 categorical.

I fixed the response with a for loop adding the value of the response to a matrix from column 1 to 5:

yTemp = inputDataCell(1:4000,2);
yCategory = categorical(cell2mat(yTemp));
for i = 1:length(yCategory)
    tempClassNum = yCategory(i,1);
    tempClassMatrix(1,1:5) = tempClassNum;
    yCC(i) = {tempClassMatrix(:,:)};
end
ySequence = yCC';

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