samplesizeFisherExact: Sample Size for Fisher's Exact Test for Two Proportions

In lrstat: Power and Sample Size Calculation for Non-Proportional Hazards and Beyond

Sample Size for Fisher's Exact Test for Two Proportions

Description

Obtains the sample size given power for Fisher's exact test for two proportions.

Usage

samplesizeFisherExact(
  beta = NA_real_,
  pi1 = NA_real_,
  pi2 = NA_real_,
  allocationRatioPlanned = 1,
  alpha = 0.05
)

Arguments

beta	The type II error.
pi1	The assumed probability for the active treatment group.
pi2	The assumed probability for the control group.
allocationRatioPlanned	Allocation ratio for the active treatment versus control. Defaults to 1 for equal randomization.
alpha	The two-sided significance level. Defaults to 0.05.

Value

A data frame with the following variables:

• alpha: The two-sided significance level.

• power: The power.

• n: The sample size.

• pi1: The assumed probability for the active treatment group.

• pi2: The assumed probability for the control group.

• allocationRatioPlanned: Allocation ratio for the active treatment versus control.

Author(s)

Kaifeng Lu, [e-mail]

Examples

(design1 <- samplesizeFisherExact(
  beta = 0.1, pi1 = 0.25, pi2 = 0.05, alpha = 0.05))

lrstat documentation built on Oct. 18, 2024, 9:06 a.m.