Package: dunn.test
Version: 1.3.7
Date: 2026-2-10
Title: Dunn's Test of Multiple Comparisons Using Rank Sums
Authors@R: c(person(given = "Alexis", family ="Dinno", role = c("aut", "cre", "cph"), email = "alexis.dinno@pdx.edu", comment = c(ORCID = "0000-0003-2560-310X")))
Imports: rlang
Description: Computes Dunn's test (1964) for stochastic dominance and reports the results among multiple pairwise comparisons after a Kruskal-Wallis test for 0th-order stochastic dominance among k groups (Kruskal and Wallis, 1952). 'dunn.test' makes k(k-1)/2 multiple pairwise comparisons based on Dunn's z-test-statistic approximations to the actual rank statistics. The null hypothesis for each pairwise comparison is that the probability of observing a randomly selected value from the first group that is larger than a randomly selected value from the second group equals one half; this null hypothesis corresponds to that of the Wilcoxon-Mann-Whitney rank-sum test. Like the rank-sum test, if the data can be assumed to be continuous, and the distributions are assumed identical except for a difference in location, Dunn's test may be understood as a test for median difference and for mean difference. 'dunn.test' accounts for tied ranks.
License: GPL-2
LazyData: true
Encoding: UTF-8
NeedsCompilation: no
Packaged: 2026-02-12 16:55:54 UTC; alexis
Author: Alexis Dinno [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0003-2560-310X>)
Maintainer: Alexis Dinno <alexis.dinno@pdx.edu>
Repository: CRAN
Date/Publication: 2026-02-13 07:01:04 UTC
Built: R 4.6.0; ; 2026-04-25 16:08:42 UTC; unix
