i have a data set of 9X120. want to use feedforwardnet and want to know how to define dataset such as simplefit_data

i have a data set of 9X120. want to use feedforwardnet and want to know how to define dataset such as simplefit_data

Answer 1

[Greg Heath]

>> [x,t] = simplefit_dataset;

[I N ] = size(x) % [ 1 94 ]

[O N ] = size(t) % [ 1 94 ]

% Instead of feedforwardnet, use fitnet for curvefitting or patternnet for classification.

net = fitnet;

MSE00 = mean(var(t',1)) % 8.3378

net.trainParam.goal = 0.01*MSE00;

[net tr] = train(net,x,t);

MSE = tr.perf(end) % 0.0202

NMSE = MSE/MSE00 % 0.0024

R2 = 1-NMSE % 0.9976 coefficient of determination (see Wikipedia)

Hope this helps.

Thank you for formally accepting my answer.

Greg