| 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 |