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Add number of events to a survival table

Source: R/tbl_survfit.R
add_nevent_survfit.Rd

Adds a column with the number of events observed in each model of a table created with tbl_survfit(), on the label rows. Called as add_nevent() on a tbl_survfit object. Multi-state models are not supported.

Value

A tbl_survfit table with an nevent column.

Arguments

  • x (tbl_survfit)
    A table created with tbl_survfit().

  • ... Not used.

See also

Other survival tables: add_n_survfit, add_p_survfit, tbl_survfit(), tbl_survfit_errors

Examples

library(survival)
fit1 <- survfit(Surv(ttdeath, death) ~ 1, trial)
fit2 <- survfit(Surv(ttdeath, death) ~ trt, trial)

# Example 1 ----------------------------------
list(fit1, fit2) |>
  tbl_survfit(times = c(12, 24)) |>
  add_n() |>
  add_nevent()