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How to resolve this error-Invalid training data. For image, sequence-to-label, and feature classification tasks, responses must be categorical.

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Shilpa Sonawane 2021-7-7

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/873698-how-to-resolve-this-error-invalid-training-data-for-image-sequence-to-label-and-feature-classific

编辑： Walter Roberson 2024-3-12

在 MATLAB Online 中打开

%% Totla RGB images=55, img4training size=35x60x3x55, YL=training Labels- 55x1
load traindata1.mat;
layers = [
    imageInputLayer([35 60 3])
    
    convolution2dLayer(3,8,'Padding','same')
    batchNormalizationLayer
    reluLayer
    
    maxPooling2dLayer(2,'Stride',2)
    
    convolution2dLayer(3,16,'Padding','same')
    batchNormalizationLayer
    reluLayer
    
    maxPooling2dLayer(2,'Stride',2)
    
    convolution2dLayer(3,32,'Padding','same')
    batchNormalizationLayer
    reluLayer
    
    fullyConnectedLayer(10)
    softmaxLayer
    classificationLayer];
options = trainingOptions('sgdm', ...
    'InitialLearnRate',0.01, ...
    'MaxEpochs',4, ...
    'Shuffle','every-epoch', ...
    'Verbose',false, ...
    'Plots','training-progress');
YL=[ones(1,28) zeros(1,27)]';
net = trainNetwork(img4training,YL,layers,options);

Error using trainNetwork (line 184)

Invalid training data. For image, sequence-to-label, and feature classification tasks, responses must be categorical.

Error in IMP1 (line 37)

net = trainNetwork(img4training,YL,layers,options);

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zahoor m 2023-12-1

Invalid training data. For image, sequence-to-label, and feature classification tasks, responses must be categorical.

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回答（1 个）

Sindhu Karri 2021-7-13

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/873698-how-to-resolve-this-error-invalid-training-data-for-image-sequence-to-label-and-feature-classific#answer_745368

Hii,

In the trainNetwork function the response input(YL) should be an categorical array, instead it is defined as an array.

Refer to below documentation links for more information on categorical array,trainNetwork.

categorical array

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Olawale 2024-3-9

Hello Shilpa, how did you fix it as categorical?

Shilpa Sonawane 2024-3-12

编辑：Walter Roberson 2024-3-12

Hello,

categorical command is available in Matlab. Use following link to check how to use it.

https://in.mathworks.com/help/matlab/ref/categorical.html

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