System Identification toolbox: how to print estimated ARMA-coefficients for each iteration step in armax-algorithm

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Urs Hackstein
Urs Hackstein 2020-6-10
回答： Rajiv Singh 2020-6-11
One can calculate ARMA-coefficients using the armax-algorithm from the Systems Identification Toolbox.
The final set of coefficients can be determined using the following code:
estimatedPolymodel=armax(iddata(outputdata,inputdata,tsample),[na nb nc nk], opt);
ARcoeff=estimatedPolymodel.A
MAcoeff=estimatedPolymodel.B
But how can we print the (preliminary) estimated sets of coefficients at each iteration step of the algorithm?

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Rajiv Singh
Rajiv Singh 2020-6-11
Use "full" display option, as in:
opt=armaxOptions('Display','full');
estimatedPolymodel=armax(iddata(outputdata,inputdata,tsample),[na nb nc nk], opt);

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