Neural Network Output

I am trying to use neural network tool to train data. I selected time series tools (NARX) with 1 neuron and 1 delay. I found the net.IW {1,1} as 0.0119 -0.0110. But when I try to test this with my test data (manually) I am not getting near to the target values. Can anybody please explain how can I use these 0.0119 -0.0110 values with the test data to get the output?

Many Thanks T

[Thamo Sutharssan]

I used to find the output using following equations ...

z(t) = 0.0119*x(t-1)-0.011*y(t-1)

y(t) = 1/(1+exp(-z(t)))

But I am not getting the target values.

Answer 1

[Greg Heath]

Typically, the inability to match net output with mathematical caalculations involves the default MAPMINMAX normalization.

Hope this helps.

Greg

[Thamo Sutharssan]

Which stage I have to apply MAPMINMAX normalization? Sorry I still do not get it? I use the MAPMINMAX normalization to my final output.

[Greg Heath]

See the documentation for whatever net you are using w.r.t.

default actions of which you may not be aware.

Hope this helps.

Greg