How create NN ???

How many layers are hidden ? Is it Backpropagation network ?

net = newff(minmax(alphabet),[S1 10 S2],{'logsig' 'logsig' 'logsig' },'traingdx');

net.LW{2,1} = net.LW{2,1}*0.01;

net.b{2} = net.b{2}*0.01;

net.performFcn = 'mse';

net.trainParam.show = 20;

net.trainParam.epochs = 2000;

net.trainParam.mc = 0.95;

P = alphabet;

T = targets;

[net,tr] = train(net,P,T);

Answer 1

[BERGHOUT Tarek]

there are 2 hidden layers .

but you should know that there is a difference between the training method and the type of the network ;

back propagation is a training tool to NN , you can't say that it is a backpropagation network , because many different types of nets can be trained with back propagation