These plots are diagnostic plots for multiple linear regression. The documentation for the
leveragePlot function seems straightforward, but I can't get the function to produce anything. Let's do a simple model with
data(mtcars) model1=lm(mpg ~ cyl + disp + hp, data=mtcars)
From what I can tell, one of the following should produce a plot
but neither does. I consistently get
~cyl is not a term in the model and similar errors when I try other terms or combinations of terms. I've also tried explicitly using
terms= to no avail.
I imagine this is just my inability to read the help documentation syntax correctly, but I'm at a wall and need some help.