DAAG: twot.permutation – R documentation

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twot.permutation

Two Sample Permutation Test - Obsolete

Description

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

Usage

twot.permutation(x1 = DAAG::two65$ambient, x2 = DAAG::two65$heated, nsim = 2000,
plotit = TRUE)

Arguments

`x1`	Sample 1
`x2`	Sample 2
`nsim`	Number of simulations
`plotit`	If TRUE, the permutation density will be plotted

Details

Suppose we have n1 values in one group and n2 in a second, with n = n1 + n2. The permutation distribution results from taking all possible samples of n2 values from the total of n values.

Value

The p-value for the test of the hypothesis that the mean of x1 differs from x2

Author(s)

J.H. Maindonald

References

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

Examples

twot.permutation()

DAAG

Data Analysis and Graphics Data and Functions

v1.24

GPL-3

Authors

John H. Maindonald and W. John Braun

Initial release