Index in position 2 exceeds array bounds (must not exceed 1).
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I am getting the following error with my code. I am making a neural network using narxnet and this error is coming in the preparenets function.
Index in position 2 exceeds array bounds (must not exceed 1).
Error in preparets (line 317)
xi = xx(:,FBS+((1-net.numInputDelays):0));
Error in narx (line 6)
[Xs,Xi,Ai,Ts] = preparets(net,x,{},y);
Here is my code:
data = xlsread('data230k1.xlsx');
x = data(1:81000,2)';
y = data(1:81000,1)';
net = narxnet(1:2,1:2,50);
[Xs,Xi,Ai,Ts] = preparets(net,x,{},y);
[net,tr] = train(net,Xs,Ts,Xi,Ai);
nntraintool;
Y = net(Xs,Xi,Ai);
E = gsubtract(Ts,Y);
Can someone help??
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Raunak Gupta
le 22 Juin 2020
Hi,
The above error is due to the input data x and y not being in the standard cell array format to be inputted to the narxnet. You can use tonndata for converting the vector x and y to cell array. For above code following changes to x and y will help:
data = xlsread('data230k1.xlsx');
x = data(1:81000,2)';
y = data(1:81000,1)';
xCell = tonndata(x,true,false);
yCell = tonndata(y,true,false);
net = narxnet(1:2,1:2,50);
[Xs,Xi,Ai,Ts] = preparets(net,xCell,{},yCell);
[net,tr] = train(net,Xs,Ts,Xi,Ai);
nntraintool;
Y = net(Xs,Xi,Ai);
E = gsubtract(Ts,Y);
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