kmplot_ticks: Add ticks to 'kmplot'

In raredd/rawr: rawr miscellaneous

Add ticks to kmplot

Description

Add tick marks to a kmplot representing a specific event, what, occurring within a variable, by_var.

Usage

kmplot_ticks(
  object,
  data = eval(object$call$data),
  by_var,
  what,
  y = 0,
  time,
  event,
  strata,
  col = NULL,
  pch = NULL,
  ...
)

Arguments

object	an object of class survfit
data	the data set used to fit s which should also contain by_var and optionally time, event, and strata; kmplot_ticks will attempt to select these variables based on the call to survfit
by_var, what	a variable, by_var in data for which tick marks are to be placed at each occurrence of what
y	the y-coordinate(s) for each point, recycled as needed
time, event, strata	(optional) variables used to fit s
col	a vector of colors (one for each strata level of s) for tick marks; note these colors should match the curves of the survival plot
pch	a vector of plotting characters to distinguish censoring and events
...	additional arguments passed to points

See Also

kmplot; kmplot_by

Examples

library('survival')
s <- survfit(Surv(futime, fustat) ~ rx, ovarian)

kmplot(s, add = TRUE)
kmplot_ticks(s, by_var = 'resid.ds', what = 1)
kmplot_ticks(s, by_var = 'resid.ds', what = 2, pch = '*', y = 0.05)

raredd/rawr documentation built on May 19, 2024, 1:02 p.m.