NARX Neural Network Error in Preparets (line 293)

for some reason I keep getting this error "index exceeds matrix dimensions" for my preparets function. Here is my code:

index = 1000;

net = narxnet(1:4,5:8,10);

X = qu2(1:index); T = qd2(1:index);

net.trainParam.min_grad = exp(-10);

[inputs, inputstates, layerstates, targets, EWs, SHIFT] = preparets(net, X, {}, T);

net = train(net,inputs,targets,inputstates,layerstates);

what am I doing wrong?

Thank you in advance!

Answer 1

[Greg Heath]

 > index = 1000;
 >  X = qu2(1:index); 
 > T = qd2(1:index);
 >
 > ERROR: "index exceeds matrix dimensions"

Isn't it obvious ?

To check

 sizequ2 = size(qu2)

 etc

Hope this helps.

Thank you for formally accepting my answer

Greg

[NOOR]

I dont understand your point. The both series are the same size. What matrix dimensions have been exceeded?

[Greg Heath]

1. Did you insert the equations I posted? What was the result?

2. What do you get when you use the command that lists all of the variables?

[Shashank Srivastava]

This problem gets solved by using command num2cell, as in X = num2cell(qu2(1:index));