Hi all, This is very embarrassment, but I have used some years ago this type of function call: " Arima(trend + max(seasonal), order=c(2,0,1), xreg=fourier(1:n,c*2,m))" Unfortunately, now I'm not able to find the suitable library where this specific fourier-call is implemented. Can you help me to find it? Thanks for your help, Jari
Hi David, Thanks for reply. It really was the fda library. Best Wishes, Jari Lainaus Jari Soininen <jari.soininen at josbit.fi>:> > Hi all, > > This is very embarrassment, but I have used some years ago this type > of function call: > > " Arima(trend + max(seasonal), order=c(2,0,1), xreg=fourier(1:n,c*2,m))" > > Unfortunately, now I'm not able to find the suitable library where > this specific fourier-call is implemented. Can you help me to find it? > > Thanks for your help, > Jari > >