challeng: Challenger data

In alr4: Data to Accompany Applied Linear Regression 4th Edition

Description

Contains data from the performance of O-rings in 23 U.S. space shuttle flights prior to the Challenger disaster of January 20, 1986.

Format

This data frame uses dates as row names and contains the following columns:

temp

Air Temp at launch (degrees F)

pres

Leak check pressure

fail

Number of O-rings that failed

n

6, number of O-rings in launch

erosion

Number of erosion incidents

blowby

Number of blowby incidents

damage

Total Damage Index

Source

Dalal, S, Fowlkes, E. B. and Hoadley, B. (1989), Risk analysis of the space shuttle: Pre-challenger prediction of failure, Journal of the American Statistical Association, 84, 945-957. See also Tufte, E. R. (1997), Visual and statistical Thinking: Displays of evidence for making decisions, Cheshire, CT: Graphics Press.

References

Weisberg, S. (2014). Applied Linear Regression, 4th edition. Hoboken NJ: Wiley.

Examples

head(Challeng)

Example output

Loading required package: car
Loading required package: carData
Loading required package: effects
lattice theme set by effectsTheme()
See ?effectsTheme for details.
         temp pres fail n erosion blowby damage
4/12/81    66   50    0 6       0      0      0
11/12/81   70   50    1 6       1      0      4
3/22/82    69   50    0 6       0      0      0
11/11/82   68   50    0 6       0      0      0
4/4/83     67   50    0 6       0      0      0
6/18/83    72   50    0 6       0      0      0

alr4 documentation built on May 2, 2019, 6:40 p.m.