The Board Stiffness Dataset

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Description

Four measures of stiffness of 30 boards are available. The first measure of stiffness is obtained by sending a shock wave down the board, the second measure is obtained by vibrating the board, and remaining are obtained from static tests.

Usage

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Format

A data frame with 30 observations on the following 4 variables.

x1

first measure of stiffness is obtained by sending a shock wave down the board

x2

second measure is obtained by vibrating the board

x3

third measure is obtained by a static test

x4

fourth measure is obtained by a static test

References

Johnson, R.A., and Wichern, D.W. (1982-2007). Applied Multivariate Statistical Analysis, 6e. Pearson Education.

Examples

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