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Wilcoxon Mann Whitney Test

KNIME Statistic Nodes (Labs) version 4.0.0.v201905311239 by KNIME AG, Zurich, Switzerland

The non-parametric Wilcoxon-Mann-Whitney tests tests for two samples with ordinal attributes if they are different from each other. For details see: Wilcoxon-Mann-Whitney Test on Wikipedia .


Test Column
Column containing the test-data.
Group Column
Column containing group information.
Group One
Name of first group.
Group Two
Name of second group.
Missing Value Strategy
Determine a strategy how missing values and Double.NaN values are treated.
  • Fixed: Missing values will be replaced with Double.NaN.
  • Failed: Exception is thrown and node will not finish execution.
  • Maximal: Missing values are considered to be maximal in the ranking.
  • Minimal: Missing values are considered to be minimal in the ranking.

Input Ports

The Input

Output Ports

Statistics for the Wilcoxon-Mann- Whitney U Test.

Best Friends (Incoming)

Best Friends (Outgoing)



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