beams: The strength of ten wood beams are effected by the specific...

In hcc: Hidden correlation check

Description

The data was collected on the specific gravity, moisture content and strength of ten wood beams.

Usage

data(beams)

Format

A data frame with 10 observations on the following 3 variables.

y

the strength of ten wood beams

x1

the specific gravity

x2

the moisture content

Source

Hand, D.J., Daly, F., Lunn, A.D., McConway, K.J. and Ostrowski, E. (1993). A Handbook of Small Datasets. Chapman and Hall.

References

Draper, N.R. and Stoneman, D.M. (1966) Testing for the inclusion of variables in linear regression by a randomisation technique. Technometrics, 8, 695-699.

Examples

data(beams)
mod <-lm(y ~ x1+x2, data=beams)
x <- beams[, 2]
res <- resid(mod)
hctest(x, res)

hcc documentation built on May 2, 2019, 2:08 a.m.