janka: Australian Eucalypt Hardwoods
In PASWR: Probability and Statistics with R
janka R Documentation
Australian Eucalypt Hardwoods
Description
The dataset consists of density and hardness measurements from 36 Australian
Eucalypt hardwoods.
Format
A data frame with 36 observations on the following 2 variables.
- Density
a measure of density of the timber
- Hardness
the Janka hardness of the timber
Details
Janka Hardness is an importance rating of Australian hardwood timbers. The
test measures the force required to imbed a steel ball into a piece of wood.
Source
Williams, E.J. (1959) Regression Analysis. John Wiley &
Sons, New York.
Examples
with(data = janka, plot(Hardness ~ Density, col = "blue"))
PASWR documentation built on May 15, 2022, 5:05 p.m.
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| janka | R Documentation |
Australian Eucalypt Hardwoods
Description
The dataset consists of density and hardness measurements from 36 Australian Eucalypt hardwoods.
Format
A data frame with 36 observations on the following 2 variables.
- Density
a measure of density of the timber
- Hardness
the Janka hardness of the timber
Details
Janka Hardness is an importance rating of Australian hardwood timbers. The test measures the force required to imbed a steel ball into a piece of wood.
Source
Williams, E.J. (1959) Regression Analysis. John Wiley & Sons, New York.
Examples
with(data = janka, plot(Hardness ~ Density, col = "blue"))
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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