MATLAB: Define width for ‘cell’

cellcnnmachine learningMATLABwidth

I am following a guide in mathworks for creating CNN, but I keep getting
   Undefined function 'width' for input arguments of type 'cell'.
   Error in CNN (line 34)
   fullyConnectedLayer(width(varoaDataset))
I am using the following code:
   %%Image input layer
   inputLayer = imageInputLayer([19 19 3]);
   %%Middle layer
   % Layer parameters - related to input layer
   filterSize = [3 3];
   numFilters = 19;
   % Creating middle layer
   middleLayers = [
   convolution2dLayer(filterSize, numFilters, 'Padding', 1)
   reluLayer()
   convolution2dLayer(filterSize, numFilters, 'Padding', 1)
   reluLayer()
   maxPooling2dLayer(3, 'Stride', 2)
   ];
   %%Final layers
   finalLayers = [
    fullyConnectedLayer(64)
    %ReLU
    reluLayer()
    %Messurement of image using loss layer
    fullyConnectedLayer(width(varoaDataset))
    % Softmax loss layer and classification layer
    softmaxLayer()
    classificationLayer()
    ];
   %%Combine layers
   layers = [
    inputLayer
    middleLayers
    finalLayers
    ];

Best Answer

My best guess, from the information that you have provided, is that you have stored your data in a cell array named varoaDataset, but the example in the documentation expects those data to be stored in a table.
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