how can i enter more than one input in NARX model?

13 次查看（过去 30 天）
Roland
Roland 2013-12-24
评论： Matheus Torquato 2018-7-23
Hi!
I want to train a NARX model, which have 1 target time series data and 3 input time series data. I tried to use the nnstool, but there I could use only 1 input data. How could I train my network with more than 1 input?
thanks, Roley

请先登录，再回答此问题。

采纳的回答

Fran Mat
Fran Mat 2014-2-5
Hi Roland:
You have to arrange your 3 input series data into 1.
Please check the example "pH Neutralization Process" that comes with the system.
Run these commands and check afterwards the variable "inputSeries". This one contains two series as input.
load pH_dataset
inputSeries = phInputs;
targetSeries = phTargets;
More info here:
http://www.mathworks.ch/ch/help/nnet/gs/neural-network-time-series-prediction-and-modeling.html
Best regards. Fran.
  1 个评论
Matheus Torquato
Matheus Torquato 2018-7-23
What if I have a vector for each item from my input?
I have 200 cycles of data from 100 engines (with 24 parameters each).
{Engine1_Time001} {Engine2_Time001} {Engine200_Time001}
{Engine1_Time002} {Engine2_Time002} . . . {Engine200_Time002}
{Engine1_Time003} {Engine2_Time003} {Engine200_Time003}
. . .
. . .
. . .
{Engine1_Time200} {Engine2_Time200} {Engine200_Time100}
Where {EngineX_TimeY} is a 1x24 Cell containing 24 parameters of the Engine X at cycle Y.
The Neural Network Time Series App doesn't seem to be able to handle that structure since the options available are only Cell Column, Matrix Column and Matrix Row.
How can I train the NARX then?

请先登录，再进行评论。

更多回答（1 个）

Roland
Roland 2014-2-5
Thanks for your help,I see now how in that example are the inputs organized. Unfortunatelly I'm not so familiar with the matlab. Could you give any advice, or a link to a description to see how can I my imported data with more variable(from excel) reform for an usable Matlab input? for example:
8,8758 1 --->[8,8758;1]
thx, Roland
  2 个评论
Fran Mat
Fran Mat 2014-2-6
Hi Roland:
Actually this is what I am looking for as well. I have to put 5 variables into one. If I find something, will let you know.
Best regards.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Sequence and Numeric Feature Data Workflows 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by