Problem in Training Ann for larger input/Output data.

Hi all, I am new to neural networking.I want train my neural network for pt = [10x7 array],but it is not getting trained.However for pt = [10x4 array] it is being trained properly. Can anybody tell me what is the problem with this code.

pt = [10x7 ] array; % pt = input

t = [4 9 16 25 36 49 64]; % t = target

net = newff(pt,t,10);

net.trainParam.epochs = 500;

net.trainParam.goal = 0.01;

net = train(net,pt,t);

y = sim(net,pt);

Thanks in Advance.

Answer 1

[TED MOSBY]

Hi,

The function "newff" is obsolete now and instead "feedforwardnet" is used as below:

pt = pt';               % 7×10
t  = t(:)';             % 1×10
net = feedforwardnet(10);
net.trainParam.epochs = 500;
net.trainParam.goal   = 0.01;
net = train(net, pt, t);
y   = net(pt);

To know more about "feedforwardnet", refer the documentation below:

https://www.mathworks.com/help/deeplearning/ref/feedforwardnet.html?searchHighlight=feedforwardnet&s_tid=srchtitle_support_results_1_feedforwardnet

Hope this helps!