| G02JAF | Linear mixed effects regression using Restricted Maximum Likelihood (REML) |
| G02JBF | Linear mixed effects regression using Maximum Likelihood (ML) |
| L8c1: | Ordinary least squares | (15 routines) |
| L8c2: | Several regressions | (1 routine) |
| L8c3: | Lp for p different from 2 | (0 routines) |
| L8c4: | Robust | (4 routines) |
| L8c5: | Measurement error models | (0 routines) |
| L8c6: | Models based on ranks | (2 routines) |