"locfit" or "lfeval"
structure, for one or two dimensional fits.plot.lfeval(x, add=FALSE, txt=FALSE, ...)"lfeval" or "locfit" objectTRUE, the points will be added to the existing plot.
Otherwise, a new plot is created.TRUE, the points are annotated with numbers in the
order they were entered into the fit."lfeval" object.lfeval,
locfit,
print.lfeval