survival: levels.Surv – R documentation

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levels.Surv

Return the states of a multi-state Surv object

Description

For a multi-state Surv object, this will return the names of the states.

Usage

## S3 method for class 'Surv'
levels(x)

Arguments

`x`	a `Surv` object

Value

for a multi-state Surv object, the vector of state names (excluding censoring); or NULL for an ordinary Surv object

Examples

y1 <- Surv(c(1,5, 9, 17,21, 30),
           factor(c(0, 1, 2,1,0,2), 0:2, c("censored", "progression", "death")))
levels(y1)

y2 <- Surv(1:6, rep(0:1, 3))
y2
levels(y2)

survival

Survival Analysis

v3.2-11

LGPL (>= 2)

Authors

Terry M Therneau [aut, cre], Thomas Lumley [ctb, trl] (original S->R port and R maintainer until 2009), Atkinson Elizabeth [ctb], Crowson Cynthia [ctb]

Initial release

2021-04-25