In Module 3, there is a demonstration titled “Demo: Estimation, Residual Analysis and Goodness of Fit”. At the very end of the video, there are two estimates produced by SAS: Model for Variable kW_Gen 0.520193 Autoregressive Factors Factor 1 = 1-0.708913B**(1) I can find earlier in the output the estimate of mu. In that same area, the estimate for the AR1,1 term is 0.708913. Earlier in the course, AR(1) is: Y_t = mu(1-phi_1) + phi_1*Y_(t-1) + e_t My question is what does Factor 1 represent, in general, and what is “B**(1)” in particular? Thank you.
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