Neural Network Expression Extraction

I used this code :

    net=feedforwardnet(1);
    x=1:10;t=x;
    [net,tr] = train(net,x,t);
    % the following two values should be equal which is not the case ?!
    net(10)
    net.LW{2,1}*tansig(net.IW{1,1}*x(10)+net.b{1})+net.b{2}

And when I apply net(10) and I compare it to the explicit value of NN output in terms of biases and transfert function, the resulting values are quiet different.

Please, could you help me clarify why these 2 values are not the same.

Thanks in advance.

Answer 1

[Greg Heath]

Type

net % Without a semicolon

See the defaults that you have not taken into account (e.g., mapminmax)

Thank you for formally accepting my answer

Greg