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trainNetwork error- categorical responses

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Marianna Kocturova
Marianna Kocturova on 21 Oct 2020
Answered: Srivardhan Gadila on 28 Oct 2020
Hi, I am not able to resolve the problem with my Neural network
I tried my network on example data set: Breast Cancer
inputs: cancerInputs 9x699
targets: cancerTargets 2x699
I change targets in categorical, but there is still the same error:
>> c = categorical(cancerTargets);
>> net = trainNetwork(cancerInputs,c,layers_4,options)
Error using trainNetwork (line 170)
Invalid training data. Responses must be a vector of categorical responses, or a cell array of categorical response sequences.

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Answers (1)

Srivardhan Gadila
Srivardhan Gadila on 28 Oct 2020
You can refer to the docoumenatation of trainNetwork.
As per your syntax of trainNetwork: net = trainNetwork(X,Y,layers,options), Y i.e., c in your question should be a N-by-1 categorical vector of labels, where N is the number of observations(=699 in your question). Make sure that the data format of your training data cancerInputs & c is according to the data format mentioned in the docoumenatation of trainNetwork.

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