NARX Time series prediction

Hi I wish evalueta a Neural network output afther treined (NARX) but I stil can't; Afther trained and salve the net with 2 input and 1 output, I try to type on Command Window the following: "net(A)" where A is a test matrix 1X2 but the answer is: Number of input does not match net.inputs. I tryed whit net(A,0,0) but still the same problem

[Greg Heath]

Thank you for all of the details we needed to help you.

Greg

Answer 1

[Greg Heath]

Don't take Greg too seriously. Sometimes he doesn't take enough time when reading posts. Since

size(A) = [ 1 2 ]

A has to be transposed to be a valid input.

Thank you for formally accepting my answer

Greg

[ADC]

Hi Greg thanks for your answer but I've alredy tried with the matrix trasposed, and it still does'nt work; Now I noticed that if I train the net with 1000X2 matrix input and the output (target) is 1000x1, I notice that I get no error when I give to the net a new input A=[1x3] , so I mean that if I give to the net the input plus the output the net give me an answer; now I've to work on the ans I got... It does'nt look anything like the target; (I've obtained a costant value, not what I was looking for, even if i change the n of layer ...) where I m wrong??

[Greg Heath]

The input and target sizes are [I N ] = [2 1000] and [O N ] = [1 1000].

It is confusing (aka annoying) when you use the transposes.

More importantly, it could be the source of your trouble.