Analytic input output equation of NARNET

I am using narnet. I want to know what kind of neural network it is. Is it a feed-forward kind of neural network. Can anyone please share the analytic equation of this network.

Answer 1

[Greg Heath]

No, it is a feedback network whos only input signals are delayed previous outputs.

There is no external applied input.

 x(n) = f( x(n-1), x(n-2),..., x(n-m)) for n > m

Thank you for formally accepting my answer

Greg

[shaifali gupta]

This is fairly general. What is this function f? I want to understand the relation between inputs and outputs expressed in terms of weights between input/hidden layer and hidden/output layer along with activations.

[Greg Heath]

In general, f is arbitrary. However, most of the time f is linear.

Hope this helps.

Greg