Data from Dalal et al. (1989) about O-ring failures in the NASA space
shuttle program. The damage index comes from a discussion of the data
by Tufte (1997).
Usage
data("SpaceShuttle")
Format
A data frame with 24 observations and 6 variables.
S. Dalal, E. B. Fowlkes, B. Hoadly (1989),
Risk analysis of the space shuttle: Pre-Challenger prediction of
failure,
Journal of the American Statistical Association,
84, 945–957.
E. R. Tufte (1997),
Visual Explanations: Images and Quantities, Evidence and
Narrative.
Graphics Press, Cheshire, CT.
M. Friendly (2000),
Visualizing Categorical Data.
SAS Institute, Cary, NC.
Examples
data("SpaceShuttle")
plot(nFailures/6 ~ Temperature, data = SpaceShuttle,
xlim = c(30, 81), ylim = c(0,1),
main = "NASA Space Shuttle O-Ring Failures",
ylab = "Estimated failure probability",
pch = 19, col = 4)
fm <- glm(cbind(nFailures, 6 - nFailures) ~ Temperature,
data = SpaceShuttle,
family = binomial)
lines(30 : 81,
predict(fm, data.frame(Temperature = 30 : 81), type = "re"),
lwd = 2)
abline(v = 31, lty = 3)