zelencap: Glass capacitor accelerated life test data

In Auburngrads/SMRD: Statistical Methods For Reliability Data

Description

Zelen describes an accelerated life test performed on glass capacitors at higher than usual levels of temperature and voltage. The data were obtained from a factorial experiment in which eight capacitors were tested at each combination of temperature and voltage. For each combination, the test was terminated after the fourth failure was observed, yielding failure (Type II) censored data.

Format

A data.frame with 40 rows and 5 variables:

[, 1]	hours	Accumulated time at event	Numeric
[, 2]	event	Event observed at hours (failure/right-censored)	Categoric
[, 3]	count	Number of events observed at hours	Numeric
[, 4]	celsius	Temperature applied	Numeric
[, 5]	volts	Electrical power applied	Numeric

Source

Zelen, M. (1959) Factorial experiments in life testing, Technometrics, 13, 269-288

Auburngrads/SMRD documentation built on Sept. 14, 2020, 2:21 a.m.