R: Abrasion loss for various hardness and tensile strength

rubber {bestglm} | R Documentation

## Abrasion loss for various hardness and tensile strength

### Description

The data come from an experiment to investigate how the resistance of rubber to abrasion is affected by the hardness of the rubber and its tensile strength.

### Usage

    data(rubber)

### Format

A data frame with 30 observations on the following 3 variables.

`hardness`

  hardness in degree Shore

`tensile.strength`

  tensile strength in kg per square meter

`abrasion.loss`

  abrasion loss in gram per hour

`ts.low`

  tensile strength minus the breakpoint 180 km/m^2

`ts.high`

  tensile strength minus the breakpoint 180 km/m^2

### 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

Cleveland, W. S. (1993). Visualizing data. Hobart Press, Summit: New Jersey.

Davies, O.L. and Goldsmith, P.L.(1972) Statistical methods in Research and Production.

### Examples

    data(rubber)
    ans <- lm(abrasion.loss~hardness+tensile.strength, data=rubber)

[Package bestglm version 0.36 Index]