MATLAB: Testing, validating and training a feedforwardnet

Question

Greetings;

How does the function 'train' test the model and validate it ? because i have just put inputs and did not seperate them into testing and training data

Answer 1

You can add the split ratios manually to the network's divideParams. Here's a snippet showing the same.

[x,t] = simplefit_dataset;
net = feedforwardnet(10);
net.divideParam.trainRatio = 70/100;
net.divideParam.valRatio = 15/100;
net.divideParam.testRatio = 15/100;
[net,tr] = train(net,x,t);