valveSeats: Valve Seats Dataset

Description Format References


Valve seats wear out in certain diesel engines, each with 16 valve seats. The dataset served as an example of recurrence data in Nelson (1995), which consists of valve-seat replacements on 41 engines in a fleet. The covariates are named ID, Days, and No., where


A data frame with 89 rows and 3 variables.


Nelson, W. (1995), Confidence Limits for Recurrence Data-Applied to Cost or Number of Product Repairs, Technometrics, 37, 147–157.

reda documentation built on May 29, 2017, 10:14 p.m.