nrisk: Get number-at-risk from a survfit object

In MalgorzataOles/BloodCancerMultiOmics2017: "Drug-perturbation-based stratification of blood cancer" by Dietrich S, Oles M, Lu J et al. - experimental data and complete analysis

Get number-at-risk from a survfit object

Description

Retrieve the number-at-risk from a survfit object for the specified times, for each strata.

Usage

nrisk(x, times = pretty(x$time))

Arguments

x	An object of type survfit.
times	The timepoints of interest.

Details

This function was written and documented by Aron Charles Eklund in his package survplot version 0.0.7.

Value

A matrix indicating the number-at-risk for each timepoint (columns) and stratum (rows).

Author(s)

Aron Charles Eklund (survplot version 0.0.7)

See Also

survplot

Examples

  
library(survival)
data(colon)
surv <- Surv(colon$time, colon$status)

## example with stratification
nrisk(survfit(surv ~ colon$rx))

## example without stratification
nrisk(survfit(surv ~ 1))

MalgorzataOles/BloodCancerMultiOmics2017 documentation built on March 29, 2024, 2:29 p.m.