janka {GLMsData} | R Documentation |
Janka hardness
Description
The Janka hardness of Australian hardwoods
Usage
data(janka)
Format
A data frame containing 36 observations with the following 2 variables.
Density
the hardwood density (units unknown); a numeric vector
Hardness
the Janka hardness (units unknown); a numeric vector
Details
The data give the Janka hardness (which is hard to measure) and the density of Australian hardwoods (which is easier to measure).
Source
W. N. Venables (1998) Exegeses on linear models. In S-Plus User's Conference, Washington DC.
References
Williams, E. J. (1959) Regression Analysis, Wiley, New York.
Examples
data(janka)
plot(janka)
[Package GLMsData version 1.4 Index]