survMisc (version 0.2)

tneSurvfit: Time, No. at risk, No. events, No. expected (by predictor)

Description

Gives time, no. at risk and no. events for a survfit object describing right censored data with one predictor. Also per-predictor estimates of no. at risk, no. expected and no. events - no. expected. No. events expected (per predictor) is given by: $$\frac{e_i(n[p]_i)}{n_i}$$ where $n[p]_i$ is the no. at risk for the predictor.

Usage

tneSurvfit(s = s)

Arguments

s

A survfit object

Value

• A data frame with the following columns:
• t
  time
• n
  no. at risk (total)
• e
  no. events (total)
• p
  predictor
• np
  no. at risk (by predictor)
• Ep
  no. events expected (by predictor)
• e_Ep
  no. events minus no. events expected

Examples

data(kidney,package="KMsurv")
s <- survfit(Surv(time=time, event=delta) ~ type, data=kidney)
tneSurvfit(s)
s <- survfit(Surv(time=time, event=delta) ~ 1, data=kidney)
tneSurvfit(s)