brains: Mammal brain weights

In alr3: Data to Accompany Applied Linear Regression 3rd Edition

Description

The data provided gives the average body weight in kilograms and the average brain weight in grams for sixty-two species of mammals.

Format

This data frame uses species names as row labels and contains the following columns:

BrainWt

Brain weight, grams

BodyWt

Body weight, kg

Source

Allison, T. and Cicchetti, D. (1976). Sleep in mammals: Ecology and constitutional correlates. Science, 194, 732-734.

References

Weisberg, S. (2005). Applied Linear Regression, 3rd edition. New York: Wiley, Section 7.1.

Examples

head(brains)

Example output

Loading required package: car
Loading required package: carData
           BrainWt  BodyWt
Arctic_fox  44.500   3.385
Owl_monkey  15.499   0.480
Beaver       8.100   1.350
Cow        423.012 464.983
Gray_wolf  119.498  36.328
Goat       114.996  27.660

alr3 documentation built on May 2, 2019, 5:20 p.m.