| bandwidth | bandwidth selection function |
| bsplines | Cubic Penalized B-splines quantile regression |
| bSplinesData | Centile curves using B-splines compared to noise data |
| CentCurv | Centile curves based on one of the different methods |
| compareCurv | Centile curves according to different methods |
| fourCurv | Centile curves based on each of the four different methods |
| locNormCst | Normal local constant estimator |
| locNormCstData | Centile curves using local polynomial compared to noise data |
| locNormLin | Normal local Linear estimator |
| locNormLinData | Centile curves using local linear polynomial compared to noise data |
| polylocLin | Polynomial local linear estimator |
| polylocLinData | Polynomial local linear estimator compared to noise data |