How to use the weight and bias matrix out side the nntool?

I have trained a feed-forward back propagation neural network using the nntool toolbox, however when I try to use the resulting weight and bias matrix to simulate the neural network outside the nntool toolbox, I do not have similar results from the ones generated by the tool.

I am using the functions as described in the Matlab documentation to simulate outside the tolbox: a = f(Wp + b)

Answer 1

[Greg Heath]

You forgot the default normalization of input and target to [-1,1] (mapminmax).

Either override that default or take it into account.

Hope this helps.

Thank you for formally accepting my answer.

Greg