v7tube: Transmitter vacuum tube life test data
In Auburngrads/SMRD: Statistical Methods For Reliability Data
Description
Although solid-state electronics have made vacuum tubes obsolete for most applications, such tubes are still
widely used in the output stage of high-power transmitters. Davis (1952) presents life data 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.
Auburngrads/SMRD documentation built on Sept. 14, 2020, 2:21 a.m.
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Description
Although solid-state electronics have made vacuum tubes obsolete for most applications, such tubes are still widely used in the output stage of high-power transmitters. Davis (1952) presents life data 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.
R Package Documentation
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We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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