locfit (version 1.1-11)

plot.eval: Plot evaluation points from a 2-d locfit object.

Description

This function is used to plot the evaluation structure generated by Locfit for a two dimensional fit. Vertices of the tree structure are displayed as O; pseudo-vertices as *.

Usage

plot.eval(x, add=FALSE, text=FALSE, ...)

Arguments

x

"locfit" object.

add

If TRUE, add to existing plot.

text

If T, numbers will be added indicating the order points were added.

...

other graphics parameters.

See Also

locfit.

Examples

data(ethanol)
fit <- locfit(NOx~E+C,data=ethanol,scale=0)
plot.eval(fit)