forbes: Atmospheric Pressure and Boiling Point in the Alps

In SMPracticals: Practicals for Use with Davison (2003) Statistical Models

Description

James Forbes measured the atmospheric pressure and boiling point of water at 17 locations in the Alps.

Usage

data(forbes)

Format

A data frame with 17 observations on the following 2 variables.

bp

Boiling point (Fahrenheit)

pres

Pressure (inches of mercury)

Source

Atkinson, A. C. (1985) Plots, Transformations, and Regression. Oxford University Press.

Examples

data(forbes)
plot(forbes)
fit <- lm(bp~pres,data=forbes)
fit
plot(forbes$pres,resid(fit))  # model OK?
# try refitting with transformation
fit <- lm(log(bp)~log(pres),data=forbes)

Example output

Loading required package: ellipse

Call:
lm(formula = bp ~ pres, data = forbes)

Coefficients:
(Intercept)         pres  
    155.296        1.902  

SMPracticals documentation built on May 2, 2019, 11:12 a.m.