NARX Neural Network

[jbausano]

Hello all,
I've started using the Neural Network toolbox V5.0 and got stuck... I followed the documentation for the "NARX Network" and got the example to work, not hard to copy/paste. Now I'm trying to figure out how I would add another input to this model, say I'd need to input, position, voltage and now temperature, just as an example. I've tried to modify the code but keep erros about the size of the inputs... could someone help me figure out this one? I've pasted the documentation example below for reference.

thanks... John
Virginia Tech

"""
clear all;close all;

load magdata
[u,us] = mapminmax(u);
[y,ys] = mapminmax;
y = con2seq; u = con2seq(u);
p = [u(3:end);y(3:end)]; t = y(3:end);

d1 = [1:2];
d2 = [1:2];
narx_net = newnarxsp({[-1 1],[-1 1]},d1,d2,[10 1],{'tansig','purelin'});
narx_net.trainFcn = 'trainbr';
narx_net.trainParam.show = 10;
narx_net.trainParam.epochs = 600;

for k=1:2,
Pi{1,k}=u{k};
end
for k=1:2,
Pi{2,k}=y{k};
end
narx_net = train(narx_net,p,t,Pi);

yp = sim(narx_net,p,Pi);
e = cell2mat(yp)-cell2mat(t);
plot(e)
"""