power.fisher.test {statmod}R Documentation

Power of Fisher's Exact Test for Comparing Proportions

Description

Calculate by simulation the power of Fisher's exact test for comparing two proportions given two margin counts.

Usage

power.fisher.test(p1, p2, n1, n2, alpha=0.05, nsim=100)

Arguments

p1 first proportion to be compared
p2 second proportion to be compared
n1 first sample size
n2 second sample size
alpha significance level
nsim number of simulated data sets

Details

Computes the power of Fisher's exact test for testing the null hypothesis that p1 equals p2 against the alternative that they are not equal.

Value

Estimated power of the test

Author(s)

Gordon Smyth

See Also

fisher.test, power.t.test

Examples

power.fisher.test(0.5,0.9,20,20) # 70

[Package statmod version 1.2.4 Index]