preparets error for using in narxnet

2018 7 12
1 个回答
更新时间：2018 7 14
7 次查看（30 天）

0 个投票

Following error is encountered with preparets: [x,xi,ai,t]=preparets(net,inputs,{},targets); .... Error using preparets (line 105) Feedback and inputs have different numbers of timesteps.
My Code reads Inputs from a xlsx file and targets with another xlsx file.
filepath='Inputdata.xlsx'; X=xlsread(filepath); % reading the Input file with size 8461*53
filepath='Targetdata.xlsx'; Y=xlsread(filepath); % Reading the Target Input file size 1*53
inputs=num2cell(X,1); targets=num2cell(Y,1);
trainFcn='trainlm'; inputDelays=1:2; feedbackDelays=1:2; hiddenLayerSize=5;
net=narxnet(inputDelays,feedbackDelays,hiddenLayerSize,'open',trainFcn);
[x,xi,ai,t]=preparets(net,inputs,{},targets);

1 个评论
显示 -1更早的评论 隐藏 -1更早的评论

ZaidiN
ZaidiN 2018-7-14
I have solved the problem using reshape and con2seq: That makes the input and target of same size!
u=X(200:500,:); y=T(200:500,:);
r1=length (u); c1=size(u,2); % Taking size of Input vector r2=length (y); c2=size(y,2); % Taking size of Target vector
u=reshape(u,c1,r1); %Making cell array of Input Matrix %u=num2cell(X,1); u=con2seq(u);
y=reshape(y,c2,r2); %Making cell array of Target matrix %y=num2cell(T,1); y=con2seq(y);

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Greg Heath
Greg Heath 2018-7-14

0 个投票

Come on ...
Error using preparets (line 105) Feedback and inputs have different numbers of timesteps
So why don't you EXPLICITLY calculate the sizes ???????????????????
inputsize = size(inputs)
targetsize = size(targets)
Thank you for EXPLICITLY accepting my answer!
Greg

1 个评论
显示 -1更早的评论 隐藏 -1更早的评论

ZaidiN
ZaidiN 2018-7-14
编辑：ZaidiN 2018-7-14
Is it right to convert input of size (8461*53) to sequential vectors for narxnet training

请先登录，再进行评论。

类别

在 帮助中心 和 File Exchange 中查找有关 Matrix Indexing 的更多信息

标签

提问:

ZaidiN
ZaidiN
2018-7-12

编辑：

ZaidiN
ZaidiN
2018-7-14

Community Treasure Hunt

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

Start Hunting!

Translated by