i created a copy of trainlm algorithm in neural network to shivlm.m with the same code of the trainlm.m. when i tried to call shivlm i get errors. can anyone help me in this regard?

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Dhandapani.S 2016-11-23

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https://ww2.mathworks.cn/matlabcentral/answers/313579-i-created-a-copy-of-trainlm-algorithm-in-neural-network-to-shivlm-m-with-the-same-code-of-the-trainl

评论： Walter Roberson 2016-11-26

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the error i get when i copy the file trainlm.m and renamed the file as shivlm.

 Undefined function 'nn_train_feedback' for input
arguments of type 'struct'.

Error in shivlm>train_network (line 206) nn_train_feedback('start',archNet,status);

Error in shivlm (line 64) [out1,out2] = train_network(varargin{2:end});

Error in network/train (line 329) [calcNet,tr] = trainFcn('apply',net,rawData,calcLib,calcNet,tr);

Error in cmpare (line 22) [net,pr]=train(net,Input',Target');

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Walter Roberson 2016-11-23

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trainlm probably uses private functions that you have not copied. You might need to copy the entire class directory.

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Walter Roberson 2016-11-26

编辑：Walter Roberson 2016-11-26

Later postings indicate the user is using R2012b. This matters because the Neural Network toolbox was completely rewritten between then and now, so the functions the user is having difficulty with do not exist in the current version.

Walter Roberson 2016-11-26

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You need the private subdirectory, which is at

fullfile(toolboxdir('nnet'),'nnet','nntrain', 'private')

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