Modern regression: Smoothing and Local Methods

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