# R: Failure Time of PET Film

hirose {boot} | R Documentation

## Failure Time of PET Film

### Description

The `hirose` data frame has 44 rows and 3 columns.

PET film is used in electrical insulation. In this accelerated life test the failure times for 44 samples in gas insulated transformers. 4 different voltage levels were used.

### Usage

    hirose

### Format

This data frame contains the following columns:

`volt`
  The voltage (in kV).
`time`
  The failure or censoring time in hours.
`cens`
  The censoring indicator; `1` means right-censored data.

### Source

The data were obtained from

Hirose, H. (1993) Estimation of threshold stress in accelerated life-testing. IEEE Transactions on Reliability, 42, 650–657.

### References

Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Methods and Their Application. Cambridge University Press.

[Package boot version 1.2-29 Index]