Overload List
| # | Signature | Description |
|---|---|---|
| 1 | Double SignTest(TVec Data1, TVec Data2, ref THypothesisResult hRes, ref Double Signif, ref Double[] ConfInt, THypothesisType hType, Double Alpha) | Performs paired Sign test. The routine tests the null hypothesis that Data1 and Data2 have equal median value. |
| 2 | Double SignTest(TVec Data, Double Median, ref THypothesisResult hRes, ref Double Signif, ref Double[] ConfInt, THypothesisType hType, Double Alpha) | One or two-sample Sign test. |
Overload 1: Double SignTest(TVec Data1, TVec Data2, ref THypothesisResult hRes, ref Double Signif, ref Double[] ConfInt, THypothesisType hType, Double Alpha)
Performs paired Sign test. The routine tests the null hypothesis that Data1 and Data2 have equal median value.
| # | Name | Description |
|---|---|---|
| 1 | Data1 | First set of data from which to compute the median. |
| 2 | Data2 | Second set of data from which to compute the median. |
| 3 | hRes | Returns the result of the null hypothesis (default assumption is that the means are equal). |
| 4 | hType | Defines the type of the null hypothesis (left, right and two - tailed). |
| 5 | Signif | (Significance level) returns the probability of observing the given result by chance given that the null hypothesis is true. |
| 6 | ConfInt | Returns the 100*(1-Alpha) percent confidence interval for the mean. |
| 7 | Alpha | Defines the desired significance level. If the significance probability (Signif) is bellow the desired significance (Alpha), the null hypothesis is rejected. |
Returns: Double - The Sign test statistics.
Examples
using Dew.Math;
using Dew.Stats;
using Dew.Stats.Units;
namespace Dew.Examples
{
private void Example()
{
Vector d1 = new Vector(0);
Vector d2 = new Vector(0);
d1.SetIt(false, new double[] {1,4,5,6,7,12});
d2.SetIt(false, new double[] {3,3.5,2,3.1,10,9});
double signif, SStat;
double[] ci = new double[2];
THypothesisResult hres;
// don't use normal approximation
SStat = Statistics.SignTest(d1,d2,out hres,out signif,out ci,THypothesisType.htTwoTailed,0.05);
}
}See Also: Statistics.WilcoxonSign
Overload 2: Double SignTest(TVec Data, Double Median, ref THypothesisResult hRes, ref Double Signif, ref Double[] ConfInt, THypothesisType hType, Double Alpha)
One or two-sample Sign test.
| # | Name | Type | Description |
|---|---|---|---|
| 1 | Data | TVec | source TVec |
| 2 | Median | Double | scalar |
| 3 | hRes | THypothesisResult (ref) | |
| 4 | Signif | Double (ref) | output |
| 5 | ConfInt | Double[] (ref) | |
| 6 | hType | THypothesisType | |
| 7 | Alpha | Double | scalar |
Returns: Double
Remarks:
Performs one-sample Sign test by comparing Data median value with given Median. The null hypothesis is that Data median is equal to Median. Additional assumption is that underlying population is continuous.