| panel.smooth {graphics} | R Documentation | 
An example of a simple useful panel function to be used as
argument in e.g., coplot or pairs.
panel.smooth(x, y, col = par("col"), bg = NA, pch = par("pch"),
             cex = 1, col.smooth = "red", span = 2/3, iter = 3,
             ...)
x, y | 
 numeric vectors of the same length  | 
col, bg, pch, cex | 
 numeric or character codes for the color(s),
point type and size of   | 
col.smooth | 
 color to be used by   | 
span | 
 smoothing parameter   | 
iter | 
 number of robustness iterations for   | 
... | 
 further arguments to   | 
coplot and pairs where panel.smooth
is typically used;
lowess which does the smoothing.
pairs(swiss, panel = panel.smooth, pch = ".")# emphasize the smooths pairs(swiss, panel = panel.smooth, lwd = 2, cex= 1.5, col="blue")# hmm...