I cannot get closed loop network to run.

1 次查看（过去 30 天）

Kevin Johnson 2021-11-29

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1598859-i-cannot-get-closed-loop-network-to-run

评论： Kevin Johnson 2021-11-29

%first, I prepare the open network in the usual way 
net=narxnet(inputDelays,feedbackDelays,hiddenLayerSize,'open',trainFcn);
% Prepare Data
X = tonndata(inputs,false,false);
T = tonndata(target,false,false);
[x,xi,ai,t] = preparets(net,X,{},T);
% Train on first half of data 
% r is the length of the data
% 2 represents the delays
hw=floor(r/2);
x_firsthalf=x(:,1:hw-2);
t_firsthalf=t(1:hw-2);
net = train(net,x_firsthalf,t_firsthalf,xi,ai);
% Get the (in-sample) open loop results on the first half of the data
[yopen,xf,af] = net(x_firsthalf,xi,ai);
% These results are good, as expected.
% Convert to closed loop network
[netc,xi,ai]=closeloop(net,xf,af);
% Get the closed loop results on the second half of the data
x_secondhalf=x(:,hw-2+1:end);
[yclosed,xf,af] = netc(x_secondhalf,xi,ai);
% Returns error message: "Error using network/sim (line 270)
% Number of inputs does not match net.numInputs."
% Yet x_firsthalf and x_secondhalf have the same numbers of input columns.
% What am I overlooking?

2 个评论
显示无隐藏无

Walter Roberson 2021-11-29

But what is size(xf) and size(xi) ?

Hypothethically, the closeloop() might have changed the number of inputs required.

Kevin Johnson 2021-11-29

In [netc,xi,ai]=closeloop(net,xf,af), size of xf is 2x2, and size of xi is 1 x 2. The target column was dropped by closeloop. When I remove it before using netc, netc executes (though the closed loop results are very poor unfortunately!). Thanks for your help.

请先登录，再进行评论。

请先登录，再回答此问题。