smplot2 (version 0.2.5)

sm_power: Post-hoc power analysis using two-sample or paired t-test

Description

Post-hoc power analysis using two-sample or paired t-test

Usage

sm_power(group1, group2, paired, sig.level = 0.05, power = 0.8)

Value

Returns a result with a class of "power.htest" from the pwr package.

Arguments

group1

Numeric vector containing data from one sample (i.e., group 1) that is to be compared with another group.

group2

Numeric vector containing data from another sample (i.e., group 2) that is to be compared with the former group.

paired

A logical indicating whether your two samples (group1 and group2) are paired.

sig.level

Significance level (Type I error probability). Default is set to 0.05.

power

Power of test (1 minus Type II error probability). Default is set to 0.8.

Examples

library(smplot2)
group1 <- rnorm(10,0,1)
group2 <- rnorm(10,1,1)
sm_power(group1, group2, paired = TRUE)