orings(faraway) R Documentation 

Spache Shuttle Challenger O-rings
Description
The 1986 crash of the space shuttle Challenger was linked to failure of O-ring seals in the rocket engines. Data was collected on the 23 previous shuttle missions. The launch temperature on the day of the crash was 31F. 

Usage
data(orings)
Format
A data frame with 23 observations on the following 2 variables. 

temp
temperature at launch in degrees F 
damage
number of damage incidents out of 6 possible 

> orings
   temp damage
1    53      5
2    57      1
3    58      1
4    63      1
5    66      0
6    67      0
7    67      0
8    67      0
9    68      0
10   69      0
11   70      1
12   70      0
13   70      1
14   70      0
15   72      0
16   73      0
17   75      0
18   75      1
19   76      0
20   76      0
21   78      0
22   79      0
23   81      0