Ex6crossing: Time-to-event data example 6 for non-proportional hazards...

Description Usage Format References See Also Examples

Description

Survival objects reverse-engineered datasets from published Kaplan-Meier curves. Individual trials are de-identified since the data are only approximations of the actual data. Data are intended to evaluate methods and designs for trials where non-proportional hazards may be anticipated for outcome data.

Usage

1

Format

Data frame with 4 variables:

id

sequential numbering of unique identifiers

month

time-to-event

event

1 for event, 0 for censored

trt

1 for experimental, 0 for control

References

TBD

See Also

Ex1delayedEffect, Ex2delayedEffect, Ex3belly, Ex4belly, Ex5widening

Examples

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data(Ex6crossing)
library(survival)
km1 <- with(Ex6crossing,survfit(Surv(month,evntd)~trt))
km1
plot(km1)
with(subset(Ex6crossing,trt==1),pwexpfit(Srv=Surv(month,evntd),3))
with(subset(Ex6crossing,trt==0),pwexpfit(Srv=Surv(month,evntd),3))

keaven/nphsim documentation built on July 2, 2018, 1:10 a.m.