T.L2                    Test the equality of nonparametric curves or
                        surfaces based on L2 distance
T.aov                   Test the equality of nonparametric curves or
                        surfaces based on an ANOVA-type statistic
T.var                   Test the equality of nonparametric curves or
                        surfaces based on variance estimators
USpopu                  US national population
loess.ancova            Fit a semiparametric ANCOVA model with a local
                        polynomial smoother
loess.as                Fit a local polynomial regression with
                        automatic smoothing parameter selection
plot.fANCOVA            Plot a fANCOVA Object
wild.boot               Generate one or multiple bootstrap samples of
                        regression residuals using the wild bootstrap
                        method
