endpoint.tstab: Threshold stability plots for endpoint

Description

This function calls endpoint.profile to compute the endpoint with profile likelihood confidence intervals at each threshold. It then returns a data frame and a plot

Usage

endpoint.tstab(
  time,
  time2 = NULL,
  event = NULL,
  thresh = 0,
  type = c("right", "left", "interval", "interval2"),
  ltrunc = NULL,
  rtrunc = NULL,
  weights = rep(1, length(time)),
  psi = NULL,
  confint = FALSE,
  level = 0.95,
  arguments = NULL,
  plot = TRUE,
  ...
)
prof_gp_endpt(
  time,
  time2 = NULL,
  event = NULL,
  thresh = 0,
  type = c("right", "left", "interval", "interval2"),
  ltrunc = NULL,
  rtrunc = NULL,
  weights = rep(1, length(time)),
  psi = NULL,
  confint = FALSE,
  level = 0.95,
  arguments = NULL,
  ...
)

Value

a data frame with the threshold, endpoint estimates and profile confidence intervals

Arguments

time: excess time of the event of follow-up time, depending on the value of event
time2: ending excess time of the interval for interval censored data only.
event: status indicator, normally 0=alive, 1=dead. Other choices are TRUE/FALSE (TRUE for death). For interval censored data, the status indicator is 0=right censored, 1=event at time, 2=left censored, 3=interval censored. Although unusual, the event indicator can be omitted, in which case all subjects are assumed to have experienced an event.
thresh: vector of thresholds
type: character string specifying the type of censoring. Possible values are "right", "left", "interval", "interval2".
ltrunc: lower truncation limit, default to NULL
rtrunc: upper truncation limit, default to NULL
weights: weights for observations
psi: mandatory vector of endpoints at which to compute the profile
confint: logical; if TRUE, return a level confidence interval instead of a list with the profile log-likelihood components
level: numeric; the level for the confidence intervals
arguments: a named list specifying default arguments of the function that are common to all elife calls
plot: logical; if TRUE, return a plot
...: additional parameters, currently ignored