IDAX.QMWW - Inverse Mann-Whitney-Wilcoxon distribution

The QMWW function returns the value x of a variable that follows the Mann-Whitney-Wilcoxon distribution for which the probability of being smaller or equal to x is equal to the specified percentage.

Syntax

IDAX.QMWW(DOUBLE percentage, BIGINT COUNTmin, BIGINT
NoItems)

Parameter descriptions

percentage: Mandatory.; The requested limit of the percentage.; If percentage is not in the range of 0 - 1, QMWW(percentage,COUNTmin,NoItems) is null for all COUNTmin values and NoItems values.; Min: 0.0000001; Max: 0.9999999; Data type: DOUBLE
COUNTmin: Mandatory.; The number of items in set 1.; If COUNTmin is not within the validity interval, QMWW(percentage,COUNTmin,NoItems) returns null for all percentage values.; Min: 1; Max: NoItems-1; Data type: BIGINT
NoItems: Mandatory.; The total number of items.; If NoItems is not within the validity interval, QMWW(percentage,COUNTmin,NoItems) returns null for all percentage values.; Min: 1; Data type: INT8

If PMWW(x,COUNTmin,NoItems)=perc, QMWW(perc,COUNTmin,NoItems)=x for all x values, COUNTmin values, and NoItems values in their respective validity interval.

Returned information

BIGINT the point x, where PMWW(x,COUNTmin,NoItems)=percentage.