This function plots the pair weights used in a weighted Cox regression analysis against time.
plotw(x, rank=FALSE, log=FALSE, xlim=c(0,max(time)),
...)a concreg object
if set to TRUE, plots the weights against ranked time (default=F)
if set to TRUE, shows logarithm of weights (default=F)
limits for time axis, defaults to range of time variable
further arguments for plotting
no return value.
The function plots the (optionally log-transformed) pair weights against (ranked) time, separately for each stratum.
concreg