FORTRAN PROGRAM TO ESTIMATE CUMULATIVE SURVIVAL PROBABILITY AND VARIANCE
Abstract
A computer program was devised to examine he survival times of test lements to estimate survival probability as a function of time. Input quantities consist of: (1) ages of elements at start of test, (2) ages of elements at times of failure, and (3) ages of elements when withdrawn from test prior to failure. The principal output qua tities are (1) the expected value of survival probability at the age ASSOCIATED WITH EACH OBSERVED FAILURE, AND (2) the variance and standard deviation a sociated with each probability estimate. The use of elements from truncated tests serves to take advantage of the largest possible sample size for a given time period without introducing a biased survivability estimate. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 31, 1962
- Accession Number
- AD0293155
Entities
People
- Robert L. Hubbard
Organizations
- Center for Naval Analyses