Re: [R] Difference in function arima estimation between 2.11.1 and R 2.12.2

2011-09-12 Thread Berend Hasselman
Luis Felipe Parra wrote: > > > and as you can see in the results some coefficients (for example ar2 and > ar8) are different in the different R versions. does anybody know what > might > be going on. Was there any change in the arima function between the two > versions? > You asked the sam

[R] Difference in function arima estimation between 2.11.1 and R 2.12.2

2011-09-12 Thread Luis Felipe Parra
Hello , I have estimated the following model, a sarima: p=9 d=1 q=2 P=0 D=1 Q=1 S=12 In R 2.12.2 Call: arima(x = xdata, order = c(p, d, q), seasonal = list(order = c(P, D, Q), period = S), optim.control = list(reltol = tol)) Coefficients: ar1 ar2 ar3 ar4 ar5 ar