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.
This data frame contains the following columns:
The voltage (in kV).
The failure or censoring time in hours.
The censoring indicator;
1 means right-censored data.
The data were obtained from
Hirose, H. (1993) Estimation of threshold stress in accelerated life-testing. IEEE Transactions on Reliability, 42, 650–657.
Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Methods and Their Application. Cambridge University Press.