Seasonal autoregression typo
Posted: Thu Nov 09, 2017 9:35 am
I think that equation (22.26) on p. 91 of Vol. II of the User Guide for 9.0 has a typo. The equation is the expanded version of the polynomial equation above it for an ar(1), ar(2), sar(4) case. The third term on the right hand side I think should be phi(4) * Y(t-4) rather than Y * mu(t-4).