How to use sigmoidal function in neural network?

Sigmoidal function=1/1+e^-aI, a = slope parameter I = ({WiXi + bias) {- summation

Answer 1

[Greg Heath]

In general

1. Transform inputs to [-1,1]

2. For regression/curvefitting

   a. Transform targets to [-1,1]
   b. Use the code in help (or doc) fitnet

3. For classification/patternrecognition

   a. Transform targets to [0,1]
   b. Use the code in help (or doc) patternnet

Hope this helps.

Greg