Estimated discrete-time polynomial model returned from an estimation routine.
estpoly(sys, fitted.values, residuals, options = NULL, call, stats,
termination = NULL, input)an idpoly object containing the estimated polynomial
coefficients
1-step ahead predictions on the training dataset
1-step ahead prediction errors
optimization specification ser used (applicable for non-linear least squares)
the matched call
a list containing estimation statistics
termination criteria for optimization
input signal of the training data-set
Do not use estpoly for directly specifing an input-output polynomial model.
idpoly is to be used instead