onetPermutation: One Sample Permutation t-test

In DAAG: Data Analysis and Graphics Data and Functions

One Sample Permutation t-test

Description

This function computes the p-value for the one sample t-test using a permutation test. The permutation density can also be plotted.

Usage

onetPermutation(x = DAAG::pair65$heated - DAAG::pair65$ambient, nsim = 2000, 
plotit = TRUE)

Arguments

x	a numeric vector containing the sample values (centered at the null hypothesis value)
nsim	the number of permutations (randomly selected)
plotit	if TRUE, the permutation density is plotted

Details

This function calculates only a one-sided p-value. The EnvStats::oneSamplePermutationTest in the EnvStats package offers a choice between two-sided and one-sided tests. If the statmod package is available, a correction will be applied that accounts for a small bias that results when permutations are sampled.

Value

The p-value for the test of the hypothesis that the mean of x differs from 0

Author(s)

J.H. Maindonald

References

Good, P. 2000. Permutation Tests. Springer, New York.

Examples

onetPermutation() 

DAAG documentation built on May 29, 2024, 9:13 a.m.