Q: Do I need to handle  the normalization when building a neural network? 
 The wizards automatically  configure the File components to normalize (i.e., transform) the data  between the bounds of the transfer functions. They also configure the  output probes to denormalize (i.e., reverse the transform of) the output  data back to the range of the desired output file. There is usually no  need to make additional changes, but these can be made after the network  is built.