sorts the right-censored data of n individuals to prepare it for hazard regression analysis. The observed data are n triples (t_i,delta_i,z_i): t_i denotes the observed survival time of the i-th individual, delta_i is the censoring indicator, z_i denotes the p-dimensional covariate vector associate
calculates the value of the test statistic, the degree of freedom, and the P-value for the likelihood ratio test, Wald's test and the score test for Cox's Proportional Hazards model.
Auxiliary quantlet for harefit and plot hare. Computes density, cumulative probability, hazard rates, quantiles, and random sample from a model fitter with harefit.