A semi-parametric generalization of the proportional hazards regression model is defined, whereby the hazard functions can cross for different values of the covariates. In the two-sample comparison, ...

Xuming He, Li-Xing Zhu, A Lack-of-Fit Test for Quantile Regression, Journal of the American Statistical Association, Vol. 98, No. 464 (Dec., 2003), pp. 1013-1022 ...

Applied statistics is the discipline that transforms real‐world data into actionable information through a variety of rigorous methodologies, ranging from classical techniques such as regression ...