ocmath_wilcoxon_sign_rank

1 Description
2 Syntax
3 Parameters
4 Return
5 Examples
6 Remark
7 See Also
8 header to Included
9 Reference

Description

Performs a Wilcoxon signed rank test for paired samples. The main engine is nag_wilcoxon_test. This is an OriginPro only function.

Syntax

int ocmath_wilcoxon_sign_rank( const double * pData1, const uint nSize1, const double * pData2, const uint nSize2, const int nTailType, NPHSummary * WilSiSummary, NPHRanks * WilSiRanks, NPHStats * WilSiStats )

Parameters

pData1: [input] pointer to 1st data points
nSize1: [input] size of 1st data points
pData2: [input] pointer to 2nd data points
nSize2: [input] size of 2nd data points
nTailType: [input] value indicates Tail Type. which containing 3 types:; TAILED_TEST_TWO is 0,; TAILED_TEST_UPPER is 1,; TAILED_TEST_LOWER is 2
WilSiSummary: [output] pointer to structure containing summary statistics of the 2 groups; WilSiSummary[0]: Summary statistics of 1st group; WilSiSummary[1]: Summary statistics of 2nd group
WilSiRanks: [output] pointer to structure containing Statistics of Ranks; WilSiRanks[0]: Statistics of Positive Ranks; WilSiRanks[1]: Statistics of Negative Ranks
WilSiStats: [output] pointer to structure containing the test statistic and p-value. No corrected for ties.

Return

Returns STATS_NO_ERROR on successful exit or an STATS error code on failure.

Examples

EX1

void ocmath_wilcoxon_sign_rank_ex1()
{
    vector pData1 = {1.0, 2.3, 4.5, 2.0, 5.3};
    int nSize1 = pData1.GetSize();
    vector pData2 = {2.2, 5.6, 4.3, 1.7, 3.8};
    int nSize2 = pData2.GetSize();
    int nTailType = TAILED_TEST_TWO;
    NPHSummary WilSiSummary[2];
    NPHRanks WilSiRanks[2];
    NPHStats WilSiStats;
    
    int nRet = ocmath_wilcoxon_sign_rank(pData1, nSize1, pData2, nSize2, nTailType, WilSiSummary, WilSiRanks, &WilSiStats );
    out_int("nRet=", nRet);
}