power.fisher.test {statmod} | R Documentation |
Calculate by simulation the power of Fisher's exact test for comparing two proportions given two margin counts.
power.fisher.test(p1, p2, n1, n2, alpha=0.05, nsim=100)
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 |
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.
Estimated power of the test
Gordon Smyth
power.fisher.test(0.5,0.9,20,20) # 70