Hi all, I want to know the moving average order of a time series variable X_t. I know that ar(x) works for the autoregressive order, but ma(x) is not doing the same for moving average.I am not sure where to find the correct function. Any help is appreciated. Thanks, Preetam -- Preetam Pal (+91)-9432212774 M-Stat 2nd Year, Room No. N-114 Statistics Division, C.V.Raman Hall Indian Statistical Institute, B.H.O.S. Kolkata. [[alternative HTML version deleted]]