samplesizeFisherExact {lrstat} | R Documentation |
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, kaifenglu@gmail.com
Examples
(design1 <- samplesizeFisherExact(
beta = 0.1, pi1 = 0.25, pi2 = 0.05, alpha = 0.05))
[Package lrstat version 0.2.9 Index]