orings: Challenger O-rings Data
In jhmaindonald/DAAG: Data Analysis and Graphics Data and Functions

Description Usage Format Source References Examples

Record of the number and type of O-ring failures prior to the tragic Challenger mission in January, 1986.

orings

This data frame contains the following columns:

Temperature: O-ring temperature for each test firing or actual launch of the shuttle rocket engine
Erosion: Number of erosion incidents
Blowby: Number of blowby incidents
Total: Total number of incidents

Presidential Commission on the Space Shuttle Challenger Accident, Vol. 1, 1986: 129-131.

Tufte, E. R. 1997. Visual Explanations. Graphics Press, Cheshire, Connecticut, U.S.A.

oldpar <- par(mfrow=c(1,2))
plot(Total~Temperature, data = orings[c(1,2,4,11,13,18),]) # the 
               # observations included in the pre-launch charts
plot(Total~Temperature, data = orings)
par(oldpar)