v7tube: Transmitter Vacuum-Tube Life Test

In Auburngrads/SMRD.data: Statistical Methods For Reliability Data - Datasets

Description

Although solid-state electronics has made vacuum tubes obsolete for most applications, such tubes are still widely used in the output stage of high-power transmitters. Davis presents life data (1952) for a certain kind of transmitter vacuum tube (designated as "V7" within a particular transmitter design). For this dataset, and in many practical situations, the exact failure times were not reported. Instead the data only contain the number of failures observed within each inspection interval.

Format

A data.frame with 5 rows and 4 variables:

[, 1]	lower	Start of an inspection interval (in days)	Numeric
[, 2]	upper	End of an inspection interval (in days)	Numeric
[, 3]	event	Event observed in the interval (right-censored/left-censored/interval-censored)	Categoric
[, 4]	count	Number of events observed in the interval	Numeric

Source

Davis, D. J. (1952), An analysis of some failure data, Journal of the American Statistical Association, 47, 113-150.

See Also

Other data-done: alloya, at7987, bearingcage, berkson20, bleed, ceramicbearing, cirpack6, comptime, computerlab, cylinder, devicea, deviceb, devicec, deviceg, fan, gaaslaser, grampus, grids1, halfbeak, heatexchanger, lfp1370, lfptrun100, lzbearing, metalwear, mylarsub, nicdbattery, piccioto, printedcircuitboard, resistor2, resistor, superalloy, tantalum, turbine, valveseat, zelencap

Auburngrads/SMRD.data documentation built on May 13, 2019, 10:02 a.m.