Hi,
I'm trying to create a plot using pair.
Currently I'm doing the following
pairs(~mpg + hp + wt , data=cars, labels = c(Miles per
Gallon,Horsepower,Weight),pch = c(24,25)[unclass(cars$tr + 1)],
bg = c(red, green3)[unclass(cars$tr + 1)],panel=panel.smooth)
for the attached dataset.
I forgot to add that I figured how to do a single regression line using:
panel.fitline-function(x, y, digits=2, prefix=, cex.cor, ...)
{
points(x, y, ...)
reg - coef(lm(y ~ x))
abline(coef=reg,untf=F,col=blue)
}
and adding: panel=panel.fitline to pairs. But I am not sure how to add
two lines
