Hello, I'm not sure if this is the right place to be requesting help with a problem for school but I figured I'd try. Anyway, I am trying to use SAS and familiar with how to use if for multiple and logistic regression, however, I am struggling using it now for Time Series. I am supposed to create a sample of length 200 from the time series model and then I am supposed to: 1. Plot the Series 2. Give the corresponding ACF and PACF plots. 3. Identify it as ARMA (p,q) for appropriate values of p and q. The model (with subscripts listed as lowercase letters) the sample is supposed to run off is: Yt= 1.5Y(t-1) - 0.56Y(t-2) + Et here is the code I entered into SAS, I recieve the error message LIBNAME TS is not assigned. data TS.ARMA11; y_1=0; y_2=0; do N=1 to 300; e = normal (0822016280); y= 1.5*y_1-0.56*y_2 + e; y_2=y_1; y_1=y; time = -100 + n; if n > 100 then output; end; keep time y; run; Someone please help me. Thanks a lot in advance. Scott
... View more