Dunn's test

Version 2.0.0.0 (18.1 KB) by Giuseppe Cardillo
Dunn's procedure for multiple, non parametric, comparisons
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Updated 3 Dec 2025
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Dunn's test is the not parametric analog of Holm-Sidak multiple t-test. When you use the Kruskal-Wallis test, you know if there is a difference among your groups, but you can't apply the KWtest for each couple because the overall error is >alpha (Bonferroni inequality). By Dunn's test you can highlight where is the difference using multiple, stepdown comparisons. The algorithm requires the Statistics Toolbox.

Cite As

Giuseppe Cardillo (2026). Dunn's test (https://github.com/dnafinder/dunn), GitHub. Retrieved .

MATLAB Release Compatibility
Created with R2014b
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes
2.0.0.0

inputparser; table implementation; github link
1.6.0.0

Changes in description
1.5.0.0

Correct the pointing to the N vector
1.4.0.0

fixed an error in the computation of denom in Qvalue.
1.3.0.0

Logical indexing improved
1.1.0.0

Changes in help section
1.0.0.0

Improvement in input error handling
To view or report issues in this GitHub add-on, visit the GitHub Repository.
To view or report issues in this GitHub add-on, visit the GitHub Repository.