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When i tried to change the training function in nntrain , from trainlm to traindx, i get the error :

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NN
NN on 27 Oct 2020
Commented: NN on 27 Oct 2020
When i tried to change the training function in nntrain , from trainlm to traindx, i get the following error :
Error using fitnet (line 73)
FCN is not the name of a function on the MATLAB path.
I used the below code for changing learning rate and momemtum .
trainFcn = 'traindx'; % Levenberg-Marquardt backpropagation.
% Create a Fitting Network
hiddenLayerSize =10;
net.trainParam.lr = 0.5;
net.trainParam.mc=0.5;
net = fitnet(hiddenLayerSize,trainFcn);
kindly advice

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Accepted Answer

Walter Roberson
Walter Roberson on 27 Oct 2020
The message is correct. Mathworks does not supply any function named traindx .
It does, however, supply a function named traingdx

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