 | Two |
Class TwoSampleFTest tests if the variances of two populations
are equal.
Inheritance HierarchyNamespace: CenterSpace.NMath.Core
Assembly: NMath (in NMath.dll) Version: 7.4
SyntaxThe TwoSampleFTest type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | TwoSampleFTest | Default constructor. Constructs a TwoSampleFTest instance with default sample parameters, alpha level, and hypothesis type. |
| TwoSampleFTest(Double, Double) | Constructs a TwoSampleFTest instance using the given arrays of sample data. |
| TwoSampleFTest(DoubleVector, DoubleVector) | Constructs a TwoSampleFTest instance using the given vectors of sample data. |
| TwoSampleFTest(IDFColumn, IDFColumn) | Constructs a TwoSampleFTest instance using the given columns of sample data. |
| TwoSampleFTest(Int32, Int32) | Constructs a TwoSampleFTest instance using the given arrays of sample data. |
| TwoSampleFTest(Double, Int32, Double, Int32) | Constructs a TwoSampleFTest instance with the given sample parameters. |
| TwoSampleFTest(Double, Double, Double, HypothesisType) | Constructs a TwoSampleFTest instance using the given arrays of sample data, and the given hypothesis parameters. |
| TwoSampleFTest(DoubleVector, DoubleVector, Double, HypothesisType) | Constructs a TwoSampleFTest instance using the given vectors of sample data, and the given hypothesis parameters. |
| TwoSampleFTest(IDFColumn, IDFColumn, Double, HypothesisType) | Constructs a TwoSampleFTest instance using the given columns of sample data, and the given hypothesis parameters. |
| TwoSampleFTest(Int32, Int32, Double, HypothesisType) | Constructs a TwoSampleFTest instance using the given arrays of sample data, and the given hypothesis parameters. |
| TwoSampleFTest(Double, Int32, Double, Int32, Double, HypothesisType) | Constructs a TwoSampleFTest instance with the given sample and and hypothesis parameters. |
Properties| Name | Description | |
|---|---|---|
 | Alpha | Gets and sets the alpha level associated with this hypothesis test. |
 | DefaultAlpha | Gets and sets the default alpha level associated with TwoSampleFTests. |
| DefaultType | Gets and sets the default form of the alternative hypothesis associated with TwoSampleFTests. |
| DegreesOfFreedom1 | Gets the numerator degrees of freedom. |
| DegreesOfFreedom2 | Gets the denominator degrees of freedom. |
| Distribution | Gets the distribution of the test statistic associated with this hypothesis test. |
| LeftCriticalValue | Gets the left critical value based on the current probability distribution and alpha level associated with this hypothesis test. |
| LeftProbability | Gets the area under the probability distribution to the left of the test statistic. |
| LowerConfidenceLimit | Gets the 1 - alpha lower confidence limit for the true mean. |
| N1 | Gets the size of the first sample. |
| N2 | Gets the size of the second sample. |
| P | Gets the p-value associated with the test statistic. |
| Reject | Tests whether the null hypothesis can be rejected, using the current hypothesis type and alpha level. |
| RightCriticalValue | Gets the right critical value based on the current probability distribution and alpha level associated with this hypothesis test. |
| RightProbability | Gets the area under the probability distribution to the right of the test statistic. |
| S1 | Gets the standard deviation of the first sample. |
| S2 | Gets the standard deviation of the second sample. |
| Statistic | Gets the value of the test statistic associated with this hypothesis test. |
| Type | Gets and sets the form of the alternative hypothesis associated with this hypothesis test. |
| UpperConfidenceLimit | Gets the 1 - alpha upper confidence limit for the true mean. |
Methods| Name | Description | |
|---|---|---|
| Clone | Creates a deep copy of this TwoSampleFTest. |
| OnDeserialized | Calls compute values following deserialization |
| ToString |
Returns a formatted string representation of the test results.
(Overrides ObjectToString) |
| Update(Double, Double) | Updates the test statistic with new sample data. |
| Update(DoubleVector, DoubleVector) | Updates the test statistic with new sample data. |
| Update(IDFColumn, IDFColumn) | Updates the test statistic with new sample data. |
| Update(Int32, Int32) | Updates the test statistic with new sample data. |
| Update(Double, Int32, Double, Int32) | Updates the test statistic with new sample parameters. |
See Also