
| ksmooth | Kernel Regression Smoother |
| loess | Local Polynomial Regression Fitting |
| loess.control | Set Parameters for Loess |
| loess.smooth | Scatter Plot with Smooth Curve Fitted by Loess |
| panel.smooth | Scatter Plot with Smooth Curve Fitted by Loess |
| plot.ppr | Plot Ridge Functions for Projection Pursuit Regression Fit |
| ppr | Projection Pursuit Regression |
| predict.loess | Predict Loess Curve or Surface |
| predict.smooth.spline | Predict from Smoothing Spline Fit |
| rock | Measurements on Petroleum Rock Samples |
| scatter.smooth | Scatter Plot with Smooth Curve Fitted by Loess |
| smooth.spline | Fit a Smoothing Spline |
| supsmu | Friedmans's SuperSmoother |