conover.test: Conover-Iman Test of Multiple Comparisons Using Rank Sums

Computes the Conover-Iman test (1979) for 0th-order stochastic dominance and reports the results among multiple pairwise comparisons after a Kruskal-Wallis omnibus test for i0th-order stochastic dominance among k groups (Kruskal and Wallis, 1952). conover.test makes k(k-1)/2 multiple pairwise comparisons based on Conover-Iman t-test-statistic of the rank differences. 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, Conover-Iman test may be understood as a test for median difference and for mean difference. conover.test accounts for tied ranks. The Conover-Iman test is strictly valid if and only if the corresponding Kruskal-Wallis null hypothesis is rejected.

Version: 1.1.6
Published: 2024-04-09
DOI: 10.32614/CRAN.package.conover.test
Author: Alexis Dinno
Maintainer: Alexis Dinno <alexis.dinno at>
License: GPL-2
NeedsCompilation: no
CRAN checks: conover.test results


Reference manual: conover.test.pdf


Package source: conover.test_1.1.6.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): conover.test_1.1.6.tgz, r-oldrel (arm64): conover.test_1.1.6.tgz, r-release (x86_64): conover.test_1.1.6.tgz, r-oldrel (x86_64): conover.test_1.1.6.tgz
Old sources: conover.test archive


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