SurvExt: SurvExt - Extended Survival Object

In iain-t-bennett/SwitchPack: Tools To Facilitate Analysis Of Trials Affected By Crossover

Description

Creates an SurvExt object that combines survival and exposure information. Can be used for RPSFT analysis.

Usage

SurvExt(formula, data, Exposure, AdminCensTime, FirstSwitchTime)

Arguments

formula	A formula for survival time on randomized treatment. Can only include single regression variable.
data	Required. A data frame in which to interpret the variables named in the formula and other arguments.
Exposure	Defines the exposure to study drug per patient.
AdminCensTime	Defines the administrative censoring time.
FirstSwitchTime	Defines the first time of switch

Examples

sim.df <- simStudy()
x <- SurvExt(Surv(os.t, os.e) ~ I(x.trt==1),
   Exposure = ifelse(x.trt == 1, os.t, ifelse(x.switch == 1, os.t - t.switch, 0)),
   AdminCensTime = t.censor,
   data = sim.df)
plot(x)
RPSFT(x)

iain-t-bennett/SwitchPack documentation built on May 16, 2019, 11:07 a.m.