search for: aequo

...en I plot cox.zph objects with the transform km and rank, but not with id and log with the same data set. Here's the command: example is a coxph object rk <- cox.zph(example, transform='rank') rk plot(rk) and here's the warning message: Warning messages: 1: suppression des ex-aequos de 'x' in: approx(xx, xtime, seq(min(xx), max(xx), length = 17)[2 * (1:8)]) 2: suppression des ex-aequos de 'x' in: approx(xtime, xx, temp) However, no points are actually missing on my plots. Is anybody get an idea of why this happens only with km and rank transforms and what do...