This is the learning set of the toy time series data, i.e. the first
1000 of the total 3000 observations.
The data follow a second order AR model. The first order
coefficient is -0.5 and the second order coefficient
0.3. The autocovariances for lags 0 to 4 are
c(1.0, -0.71, 0.66, -0.54, 0.47) (theoretical values, two
significant digits).
Use file.show(system.file("toyDataSrc", "sisalToyTs.R",
package="sisal")) to view the script that generated the data.