Neural Networks, K fold in patternnet

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laplace laplace 2013-5-19

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https://ww2.mathworks.cn/matlabcentral/answers/76309-neural-networks-k-fold-in-patternnet

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i got 3x1 matrices that i wanna classify in to two groups using k fold crossvalidation method.

i have to train a network with the patternnet algorithm
and apply to the data the k-fold cross validation method,

Indices = crossvalind('Kfold',inputs , 5);
    for i=1:5
         test = (Indices == i); 
         train = ~test;
     for n = 1:5  
               net = patternnet(inputs,targets,h);    %test train
               net.divideFcn = 'dividetrain';
               net.trainParam.goal = MSEgoal;
               net.trainParam.min_grad = MinGrad;
               [net,tr] = train(net,inputs,targets);   % test train
                bestepoch = tr.best_epoch;
                R2(n,h) = 1 - tr.perf(bestepoch)/MSEtrn00;
           end