girder: Strength Data Set of a Girder Experiment

In ACSWR: A Companion Package for the Book "A Course in Statistics with R"

Description

The shear strength of steel plate girders need to be modeled as a function of the four methods and nine girders.

Usage

data(girder)

Format

A data frame with 9 observations on the following 5 variables.

Girder

The row names, varying from S1.1 to S4.2, represent the nine type of girders, S1.1 S1.2 S2.1 S2.2 S3.1 S3.2 S4.1 S4.2 S5.1

Aarau

one of the four methods of preparation of the steel plates

Karisruhe

one of the four methods of preparation of the steel plates

Lehigh

one of the four methods of preparation of the steel plates

Cardiff

one of the four methods of preparation of the steel plates

References

Wu, C.F.J. and M. Hamada (2000-9). Experiments: Planning, Analysis, and Parameter Design Optimization, 2e. J. Wiley.

Examples

data(girder)
girder
boxplot(girder[,2:5])

Example output

  Girder Aarau Karisruhe Lehigh Cardiff
1   S1.1 0.772     1.186  1.061   1.025
2   S2.1 0.744     1.151  0.992   0.905
3   S3.1 0.767     1.322  1.063   0.930
4   S4.1 0.745     1.339  1.062   0.899
5   S5.1 0.725     1.200  1.065   0.871
6   S1.2 0.844     1.402  1.178   1.004
7   S2.2 0.831     1.365  1.037   0.853
8   S3.2 0.867     1.537  1.086   0.858
9   S4.2 0.859     1.559  1.052   0.805

ACSWR documentation built on May 2, 2019, 6:53 a.m.