Wdata: Data set

In weibullness: Goodness-of-Fit Test for Weibull Distribution (Weibullness)

Data set

Description

bearings: It is from Lieblein and Zelen (1956). These data are deep-groove ball bearings failure times (number of millions of revolutions) in eudurance tests.

glassfiber1.5 and glassfiber15: They are from Smith and Naylor (1987). These data sets are from experimental data for the strength of glass fiber of length 1.5cm and 15cm, respectively.

urinary: It is from Santiago and Smith (2013). It is about the days in between discharge of males in nosocomial urinary tract infections in patients.

radiotherapy and radio.chemotherapy: They are from Finkelstein, D. M. (1986) and Lindsey, J. C. and L. M. Ryan (1998). These data are interval-censored observations from a study of patients with breast cancer. The measurement is the time to cosmetic deterioration of the breast for women who received radiotherapy and women who received radio-chemotherapy.

Usage

Wdata

References

Lieblein, J. and M. Zelen (1956). Statistical Investigation of the Fatigue Life of Deep-Groove Ball Bearings. Journal of Research of the National Bureau of Standards, 57 (5), 273-316.

Smith, R. L. and J. C. Naylor (1987). A comparison of maximum likelihood and Bayesian estimators for the three-parameter Weibull distribution. Journal of the Royal Statistical Society. Series C (Applied Statistics), 36 (3), 358-369.

Santiago, E. and J. Smith (2013). Control Charts Based on the Exponential Distribution: Adapting Runs Rules for the t Chart, Quality Engineering, 25 (2), 85-96.

Finkelstein, D. M. (1986), A proportional hazards model for interval-censored failure time data. Biometrics, 42, 845-865.

Lindsey, J. C. and L. M. Ryan (1998). Tutorial in biostatistics: Methods for interval-censored data. Stat. Med., 17, 219-238.

Examples

# Attach data sets
attach(Wdata)
bearings
glassfiber1.5
glassfiber15
urinary
radiotherapy
radio.chemotherapy

weibullness documentation built on Aug. 8, 2023, 5:12 p.m.