This function computes the p-value for the two sample t-test using a permutation test. The permutation density can also be plotted.
twot.permutation(x1 = DAAG::two65$ambient, x2 = DAAG::two65$heated, nsim = 2000,
plotit = TRUE)
The p-value for the test of the hypothesis that the mean of
x1
differs from x2
Sample 1
Sample 2
Number of simulations
If TRUE, the permutation density will be plotted
J.H. Maindonald
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.
Good, P. 2000. Permutation Tests. Springer, New York.