glmtoolbox (version 0.1.12)

brains: Mammal brain and body weights

Description

These data correspond to the (average) body weight and the (average) brain weight for sixty-two species of mammals.

Usage

data(brains)

Format

A data frame with 62 rows and 3 variables:

Specie

a character string giving the species name.

BrainWt

a numeric vector indicating the average brain weight, in grams.

BodyWt

a numeric vector indicating the average body weight, in kilograms.

References

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

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

Examples

data(brains)
xlab <- "log(Body Weight)"
ylab <- "log(Brain Weight)"
dev.new()
with(brains,plot(log(BodyWt),log(BrainWt),pch=20,xlab=xlab,ylab=ylab))