eAccrual: Piecewise constant expected accrual

In evettek/ek-test: Group Sequential Design Under Non-Proportional Hazards

Description

eAccrual() computes the expected cumulative enrollment (accrual) given a set of piecewise constant enrollment rates and times.

Usage

eAccrual(
  x = 0:24,
  enrollRates = tibble::tibble(duration = c(3, 3, 18), rate = c(5, 10, 20))
)

Arguments

x	times at which enrollment is to be computed.
enrollRates	Piecewise constant enrollment rates expressed as a tibble with duration for each piecewise constant period and the rate of enrollment for that period.

Value

A vector with expected cumulative enrollment for the specified times.

Specification

The contents of this section are shown in PDF user manual only.

Examples

# Example: default
eAccrual()

evettek/ek-test documentation built on Dec. 20, 2021, 6:47 a.m.