Undefined function or variable error using Neural Network Toolbox

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I am following the provided example for Long-Short-Term-Memory networks found in the Neural Network Toolbox (https://de.mathworks.com/help/nnet/examples/classify-sequence-data-using-lstm-networks.html) and whenever I use the code given in the example for training the network
net = trainNetwork(X,Y,layers,options);
I get the following error:
>> net = trainNetwork(X,Y,layers,options);
Training on single GPU.
|=========================================================================================|
| Epoch | Iteration | Time Elapsed | Mini-batch | Mini-batch | Base Learning|
| | | (seconds) | Loss | Accuracy | Rate |
|=========================================================================================|
Error using trainNetwork (line 140)
Undefined function or variable 'endfunction'.
Caused by:
Undefined function or variable 'endfunction'.
I tried re-installing the toolbox and rehasing the toolbox cache but it does not matter. Also, if I try to use
maxEpochs = 150;
miniBatchSize = 27;
shuffle = 'never';
cpu = 'cpu';
options = trainingOptions('sgdm', ...
'MaxEpochs',maxEpochs, ...
'MiniBatchSize',miniBatchSize, ...
'Shuffle', shuffle), 'ExecutionEnvironment' , cpu);
I get this error message:
>> net = trainNetwork(X,Y,layers,options);
Error using trainNetwork (line 140)
Undefined function or variable 'endfunction'.
Caused by:
Undefined function or variable 'endfunction'.
It looks like while using the CPU for computation the function does not even start.
Thanks in advance.

Accepted Answer

Walter Roberson
Walter Roberson on 27 Oct 2017
endfunction is for Octave code not MATLAB
  4 Comments
Akib Rahman
Akib Rahman on 22 Jun 2018
Edited: Akib Rahman on 22 Jun 2018
@Walter I am facing same type problem! I also use your suggestion ( dbstop if caught error ) but it is same. What should I do? In my PC neural network toolbox already installed.
When I run my code it gives me this error
Undefined function or variable 'batchNormalizationLayer'.
Error in leafRNN (line 30)
batchNormalizationLayer

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More Answers (1)

Shounak Mitra
Shounak Mitra on 31 Oct 2017
Edited: Walter Roberson on 31 Oct 2017
options = trainingOptions('sgdm', ...
'MaxEpochs',maxEpochs, ...
'MiniBatchSize',miniBatchSize, ...
'Shuffle', shuffle), 'ExecutionEnvironment' , cpu);
You might want to remove the bracket after shuffle? ;-)

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