KruskalWallisTest Class

Members See Also

Represents the Kruskal-Wallis test.

Namespace: Extreme.Statistics.Tests
Assembly: Extreme.Numerics.Net40 (in Extreme.Numerics.Net40.dll) Version: 4.2.11333.0 (4.2.12253.0)

Syntax

C#
public sealed class KruskalWallisTest : MultiSampleTest

Visual Basic (Declaration)
Public NotInheritable Class KruskalWallisTest _ Inherits MultiSampleTest

Visual C++
public ref class KruskalWallisTest sealed : public MultiSampleTest

F#
[<SealedAttribute>] type KruskalWallisTest = class inherit MultiSampleTest end

Remarks

Use the KruskalWallisTest class to test whether a number of samples come from the same population. This test can be thought of as a non-parametric variation of one-way analysis of variance that doesn't assume the data is normally distributed.

This class approximates the distribution of the test statistic by a beta distribution. This approximation has been found to be more accurate than the traditional chi-square approximation. Still, for small sample sizes, critical values and tail probabilities may differ significantly from their exact values.

Inheritance Hierarchy

System..::..Object
  Extreme.Statistics.Tests..::..HypothesisTest
    Extreme.Statistics.Tests..::..MultiSampleTest
      Extreme.Statistics.Tests..::..KruskalWallisTest