clinfun (version 1.1.5)

oc.twostage.bdry: Two-stage boundary operating characteristics

Description

Calculates the operating characteristics of a two-stage boundary.

Usage

oc.twostage.bdry(pu, pa, r1, n1, r, n)

Value

oc.twostage.bdry returns the type I and II error rates as well as the probability of early temination and expected sample size under pu for a specific boundary.

Arguments

pu

unacceptable response rate

pa

response rate that is desirable

r1

first stage threshold to declare treatment undesirable

n1

first stage sample size

r

overall threshold to declare treatment undesirable

n

total sample size