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NodeNode / Manipulator

Wilcoxon-Mann-Whitney Test

KNIME Labs Statistics
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The non-parametric Wilcoxon-Mann-Whitney test (a.k.a. Mann–Whitney U test, Wilcoxon rank-sum test) tests if two independent samples, with ordinal attributes, originate from populations with the same distribution.

More information can be found at Wilcoxon-Mann-Whitney test on Wikipedia.

Hypotheses:
H 0 : the distributions of the populations are the same.
H A : the distributions of the populations are different.

Node details

Input ports
  1. Type: Table
    Samples
    Input table with at least one ordinal column and one nominal column (groups).
Output ports
  1. Type: Table
    Results
    Output table with Wilcoxon-Mann-Whitney test statistics, p-Value, and descriptive statistics of group ranks.

Extension

The Wilcoxon-Mann-Whitney Test node is part of this extension:

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