chartl a79967d9af After extensive testing of MannWhitneyU: ... - Verified that exact calculations do agree with R's dwilcox() - Verified that exact calculations do not agree with R's wilcox.test + This is because R does a correction, and calculates CDFs rather than PDFs (e.g. sums over dwilcox() values) - Can now specify MWU to calculate cumulative exact tests, rather than point probabilities - Z-scores are now calculated properly for exact tests + Previously, z-values calculated by inverting normal CDF from U-statistic PDF + Now both inversions are done, with a smart heuristic (biased variance) to make the point-calculated Z-value more accurate + Additional tests git-svn-id: file:///humgen/gsa-scr1/gsa-engineering/svn_contents/trunk@5911 348d0f76-0448-11de-a6fe-93d51630548a		2011-06-01 15:51:27 +00:00
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broadinstitute/sting	After extensive testing of MannWhitneyU:	2011-06-01 15:51:27 +00:00