Tutorial: Parametric Reliability Models

September, 2018
IDA document: D-9171
FFRDC: Systems and Analyses Center
Type: Documents
Division: Operational Evaluation Division
Yevgeniya K. Pinelis, William R. Whitledge See more authors
This tutorial demonstrates how to plot reliability functions parametrically in R using the output from any reliability modeling software. It provides code and sample plots of reliability and failure rate functions with confidence intervals for three different skewed probability distributions: the exponential, the two-parameter Weibull, and the lognormal. These three distributions are the most common parametric models for reliability or survival analysis. This paper also provides mathematical background for the models and recommendations for when to use them.