Represents a non-parametric test that two samples are from the same distribution.
SystemObject Extreme.Statistics.TestsHypothesisTest Extreme.Statistics.TestsTwoSampleTestNumericalVariable Extreme.Statistics.TestsTwoSampleTest Extreme.Statistics.TestsMannWhitneyTest
Extreme.Numerics.Net40 (in Extreme.Numerics.Net40.dll) Version: 6.0.16073.0 (6.0.16073.0)
public sealed class MannWhitneyTest : TwoSampleTest
Public NotInheritable Class MannWhitneyTest
public ref class MannWhitneyTest sealed : public TwoSampleTest
type MannWhitneyTest =
The MannWhitneyTest type exposes the following members.
Use the MannWhitneyTest class to test the hypothesis that two samples are
drawn from the same distribution. The test uses the ranks in the combined sample.
No assumptions are made about the distribution.
The test is also known as the Mann-Whitney-Wilcoxon test or the Wilcoxon rank-sum test.
For smaller sample sizes, an exact test is used under the assumption that there are no ties.
For larger sample sizes (greater than 80), or when ties are present,
the sampling distribution of the Mann-Whitney statistic
is approximated by a normal distribution with a correction for tied values.
This behavior can be overriden through the Exactness property.
Supported in: 5.x, 4.x