 | Two |
Class TwoSamplePairedTTest tests if two paired sets of observed values differ
from each other in a significant way.
Inheritance HierarchyNamespace: CenterSpace.NMath.Core
Assembly: NMath (in NMath.dll) Version: 7.4
SyntaxThe TwoSamplePairedTTest type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | TwoSamplePairedTTest | Default constructor. Constructs a TwoSamplePairedTTest instance with default sample parameters, alpha level, and hypothesis type. |
| TwoSamplePairedTTest(Double, Double) | Constructs a TwoSamplePairedTTest instance using the given paired arrays of sample data. |
| TwoSamplePairedTTest(DoubleVector, DoubleVector) | Constructs a TwoSamplePairedTTest instance using the given paired vectors of sample data. |
 | TwoSamplePairedTTest(IDFColumn, IDFColumn) | Constructs a TwoSamplePairedTTest instance using the given paired columns of sample data. |
| TwoSamplePairedTTest(Int32, Int32) | Constructs a TwoSamplePairedTTest instance using the given paired arrays of sample data. |
| TwoSamplePairedTTest(Double, Double, Int32) | Constructs a TwoSamplePairedTTest instance with the given sample parameters. |
| TwoSamplePairedTTest(Double, Double, Double, HypothesisType) | Constructs a TwoSamplePairedTTest instance using the given paired arrays of sample data, and the given hypothesis parameters. |
| TwoSamplePairedTTest(DoubleVector, DoubleVector, Double, HypothesisType) | Constructs a TwoSamplePairedTTest instance using the given paired vectors of sample data, and the given hypothesis parameters. |
| TwoSamplePairedTTest(IDFColumn, IDFColumn, Double, HypothesisType) | Constructs a TwoSamplePairedTTest instance using the given paired columns of sample data, and the given hypothesis parameters. |
| TwoSamplePairedTTest(Int32, Int32, Double, HypothesisType) | Constructs a TwoSamplePairedTTest instance using the given paired arrays of sample data, and the given hypothesis parameters. |
| TwoSamplePairedTTest(Double, Double, Int32, Double, HypothesisType) | Constructs a TwoSamplePairedTTest instance with the given sample 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 TwoSamplePairedTTests. |
| DefaultType | Gets and sets the default form of the alternative hypothesis associated with TwoSamplePairedTTests. |
| DegreesOfFreedom | Gets the 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. |
| N | Gets the sample size. |
| 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. |
| S | Gets the standard deviation of the differences between paired observations. |
| SEM | Gets the standard error of the mean. |
| 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. |
| Xbar | Gets the mean of the differences between paired observations. |
Methods| Name | Description | |
|---|---|---|
| Clone | Creates a deep copy of this TwoSamplePairedTTest. |
| 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, Double, Int32) | Updates the test statistic with new sample parameters. |
Remarks
Paired samples often occur in pre-test/post-test studies in which subjects are
measured before and after an intervention. They also occur in matched-pairs
(for example, matching on age and sex), cross-over trials, and sequential
observational samples. Paired samples are also called matched samples and
dependent samples.
See Also