| g10abc | Fit cubic smoothing spline, smoothing parameter given |
| g10acc | Fit cubic smoothing spline, smoothing parameter estimated |
| g13cbc | Univariate time series, smoothed sample spectrum using spectral smoothing by the trapezium frequency (Daniell) window |
| g13cdc | Multivariate time series, smoothed sample cross spectrum using spectral smoothing by the trapezium frequency (Daniell) window |