Re: [Rd] using innov in arima.sim

2005-10-10 Thread Prof Brian Ripley
On Mon, 10 Oct 2005, Hjellvik Vidar wrote: > Hello, > > I have used the arima.sim function to generate a lot of time series, but to > day I got som results that I didn't quite understand. Generating two time > series z0 and z1 as > > eps <- rnorm(n, sd=0.03) > z0 <- arima.sim(list(ar=c(0.9)), n=

[Rd] using innov in arima.sim

2005-10-10 Thread Hjellvik Vidar
Hello, I have used the arima.sim function to generate a lot of time series, but to day I got som results that I didn't quite understand. Generating two time series z0 and z1 as eps <- rnorm(n, sd=0.03) z0 <- arima.sim(list(ar=c(0.9)), n=n, innov=eps) and z1 <- arima.sim(list(ar=c(0.9)), n=n,