The Pairwise Multiple Comparison of Mean Ranks Package (PMCMR)

Abstract

2 Comparison of multiple independent samples (One-factorial design) 2 2.1 Kruskal and Wallis test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.2 Kruskal-Wallis – post-hoc tests after Nemenyi . . . . . . . . . . . . . . . . 3 2.3 Examples using posthoc.kruskal.nemenyi.test . . . . . . . . . . . . . 4 2.4 Kruskal-Wallis – post-hoc test after Dunn . . . . . . . . . . . . . . . . . . 6 2.5 Example using posthoc.kruskal.dunn.test . . . . . . . . . . . . . . . . 7 2.6 Kruskal-Wallis – post-hoc test after Conover . . . . . . . . . . . . . . . . . 8 2.7 Example using posthoc.kruskal.conover.test . . . . . . . . . . . . . . 8 2.8 Dunn’s multiple comparison test with one control . . . . . . . . . . . . . . 9 2.9 Example using dunn.test.control . . . . . . . . . . . . . . . . . . . . . 10 2.10 van der Waerden test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.11 Example using vanWaerden.test . . . . . . . . . . . . . . . . . . . . . . . 12 2.12 post-hoc test after van der Waerden for multiple pairwise comparisons . . 12 2.13 Example using posthoc.vanWaerden.test . . . . . . . . . . . . . . . . . 12