Data for Exercises 2.15, 2.44, 2.58 and Examples 2.3 and 2.20
A data frame/tibble with 28 observations on three variables
a factor with levels
body weight (in kg)
brain weight (in g)
P. Rousseeuw and A. Leroy, Robust Regression and Outlier Detection (New York: Wiley, 1987).
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.
plot(log(brainweight) ~ log(bodyweight), data = Brain, pch = 19, col = "blue", main = "Example 2.3") mod <- lm(log(brainweight) ~ log(bodyweight), data = Brain) abline(mod, lty = "dashed", col = "blue")
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