panel.car {car}R Documentation

Panel Function Coplots

Description

a panel function for use with coplot that plots points, a lowess line, and a regression line.

Usage

panel.car(x, y, col, pch, cex=1, span=0.5, lwd=2, 
  regression.line=lm, lowess.line=TRUE, ...)

Arguments

x vector giving horizontal coordinates.
y vector giving vertical coordinates.
col point color.
pch plotting character for points.
cex character expansion factor for points.
span span for lowess smoother.
lwd line width, default is 2.
regression.line function to compute coefficients of regression line, or FALSE for no line.
lowess.line if TRUE plot lowess smooth.
... other arguments to pass to functions lines and reg.line.

Value

NULL. This function is used for its side effect: producing a panel in a coplot.

Author(s)

John Fox jfox@mcmaster.ca

See Also

coplot, reg.line

Examples

coplot(prestige~income|education, panel=panel.car, 
  col="red", data=Prestige)

[Package car version 1.1-0 Index]