boot.lowess {animation} | R Documentation |
Sample the original data with replacement and fit LOWESS curves accordingly.
boot.lowess(x, y = NULL, f = 2/3, iter = 3, line.col = "#FF000033", ...)
x,y,f,iter |
passed to |
line.col |
the color of the LOWESS lines |
... |
other arguments passed to the scatterplot by |
We keep on resampling the data and finally we will see several bootstrapped LOWESS curves, which may give us a rough idea about a “confidence interval” of the LOWESS fit.
Yihui Xie
oopt = ani.options(nmax = if (interactive()) 100 else 2, interval = 0.02) boot.lowess(cars, pch = 20, xlab = "speed", ylab = "dist") boot.lowess(cars, f = 1/3, pch = 20) ## save in HTML pages saveHTML({ par(mar = c(4.5, 4, 0.5, 0.5)) boot.lowess(cars, f = 1/3, pch = 20, xlab = "speed", ylab = "dist") }, img.name = "boot_lowess", imgdir = "boot_lowess", interval = 0.1, title = "Bootstrapping with LOWESS", description = "Fit LOWESS curves repeatedly via bootstrapping.") ani.options(oopt)