stiff: The Board Stiffness Dataset

In SMLoutliers: Outlier Detection Using Statistical and Machine Learning Methods

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

data(stiff)

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. Tattar, et al. (2016). A Course in Statistics with R. J. Wiley.

Examples

data(stiff)
summary(stiff)

Example output

       x1             x2             x3             x4      
 Min.   :1325   Min.   :1170   Min.   :1002   Min.   :1176  
 1st Qu.:1715   1st Qu.:1596   1st Qu.:1296   1st Qu.:1520  
 Median :1863   Median :1680   Median :1466   Median :1674  
 Mean   :1906   Mean   :1750   Mean   :1509   Mean   :1725  
 3rd Qu.:2057   3rd Qu.:1889   3rd Qu.:1624   3rd Qu.:1881  
 Max.   :2983   Max.   :2794   Max.   :2412   Max.   :2581  

SMLoutliers documentation built on May 1, 2019, 9:57 p.m.