NARX Time series prediction

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ADC 2018-10-17

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https://ww2.mathworks.cn/matlabcentral/answers/424526-narx-time-series-prediction

评论： Greg Heath 2018-10-21

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

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Greg Heath 2018-10-17

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

Greg

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Answer 1

Greg Heath 2018-10-18

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https://ww2.mathworks.cn/matlabcentral/answers/424526-narx-time-series-prediction#answer_342000

在 MATLAB Online 中打开

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

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ADC 2018-10-20

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??