© 1996 by Biometrika Trust
MISCELLANEA |
A note on BuckleyJames estimators for censored data
Department of Actuarial Mathematics and Statistics, Heriot-Watt University Riccarton, Edinburgh, EH14 4AS, U.K.
We consider Buckley-James estimation in simple linear regression applied to the Stanford heart transplant data. We describe an experiment in which the ages of patients are perturbed. The number of limiting values of Buckley-James estimates exhibits chaotic behaviour. By considering the ordering of the residuals we obtain formulae for the limiting values of the regression coefficients
Key Words: Buckley-James estimator Censored regression Chaos Fixed-point iteration Stanford heart transplant data