CODEWITHSUNDEEP
matlab
Ali Salehi
Ali Salehi

Reputation: 341

MLP with backpropagation in matlab

I want to build a MLP network with a hidden layer which has 7 neurons. I tried to use newff() and train() in Matlab, but I got this error: "Function 'subsindex' is not defined for values of class 'network'."

here is my code:

mytrain = mytrain';
train_class = train_class';
net = newff(minmax(mytrain),[7 1],{'logsig' 'logsig'}, 'traingd');
net.trainParam.epochs = 100;
net = train(net,mytrain,train_class); % the error comes from here
A = sim(net,mytrain);

Any idea would be helpful. thanks.

Upvotes: 0

Views: 158

Answers (1)

Ali Salehi
Ali Salehi

Reputation: 341

it seems all problem came from:

mytrain = mytrain';
train_class = train_class';

I removed these two, and write the code like this:

net = newff(minmax(mytrain),[7 1],{'logsig' 'logsig'}, 'traingd');
net.trainParam.epochs = 100;
net = train(net,mytrain',train_class'); % I put the transpose command here

and it worked !!!

Upvotes: 1

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