How to plot “nlarx” Model of arbitrary input?

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MJ on 16 Dec 2015

After system identification by nlarx command, how can I obtain the nlarx model identified output from my arbitrary inputs?

After step(nlarxModel), command I face this error message and no plot is made:

Warning: The data cannot be plotted because it is incompatible with the size of the plot or is missing. What's the problem?

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