Robust Baseline Hazard Standard Errors — robust.basehaz.phreg • mets

Computes robust (sandwich) standard errors for the cumulative baseline hazard from a phreg object.

Summarizes cumulative baseline hazard estimates from a phreg object, optionally with robust standard errors.

Computes confidence intervals using log or plain transformations, with optional restrictions to positive values or probability scale.

Usage

robust.basehaz.phreg(x, type = "robust", fixbeta = NULL, ...)

summarybase.phreg(object, robust = FALSE, ...)

conftype(
  x,
  std.err,
  conf.type = c("log", "plain"),
  restrict = c("positive", "prob", "none"),
  conf.int = 0.95
)

Arguments

x: point estimate(s).
type: type of standard error (default "robust").
fixbeta: if non-NULL, fixes beta at given value.
...: additional arguments.
object: a phreg object.
robust: logical; if TRUE, uses robust standard errors.
std.err: standard error(s).
conf.type: type of transformation: "log" or "plain".
restrict: restriction: "positive", "prob", or "none".
conf.int: confidence level (default 0.95).

Value

A list with cumhaz, se.cumhaz, and strata.

An object of class "summary.recurrent".

A list with upper, lower, conf.type, and conf.int.