I ran a linear regression using the following code:
rm(list = ls())
model =lm(mpg ~ horsepower, Auto)
par(mar = c(1,1,1,1))
plot(Auto$horsepower, Auto$mpg,ylab = “mpg”,xlab = “horsepower”)
The plot(model) commands gives the following graphs:
Can someone help me understand the meaning of the plots obtained? What could they alternately be and what would it then mean?