power_subgroup: Calculate power for subgroup interaction

In th-zelniker/TIMI:

Calculate power for subgroup interaction

Description

Based on Alosh, Huque, Koch (2015)

Usage

power_subgroup(alpha_s, delta_rel, alpha, beta, K)

Arguments

alpha_s	1-sided alpha (Type I error) for subgroup interaction
delta_rel	Interaction effect relative to the overall effect [(log(HR_s - log(delta_c)) / log(HR_overall)], see separate function
alpha	Type I error of the study (one-sided alpha)
beta	Type II error of the study
K	Proportion

Value

Power of subgroup interaction

th-zelniker/TIMI documentation built on Oct. 1, 2022, 2 p.m.