From d6259145c57dbef83bbe9fc0d90d35ed14a95a96 Mon Sep 17 00:00:00 2001 From: John Darrington Date: Mon, 25 Oct 2010 20:54:54 +0200 Subject: [PATCH] Mann-Whitney: Change the rank sum used for Wilcoxon W --- src/language/stats/mann-whitney.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/language/stats/mann-whitney.c b/src/language/stats/mann-whitney.c index b837177b..94cb1ceb 100644 --- a/src/language/stats/mann-whitney.c +++ b/src/language/stats/mann-whitney.c @@ -121,11 +121,11 @@ mann_whitney_execute (const struct dataset *ds, mwv->u += mwv->n[0] * (mwv->n[0] + 1) / 2.0; mwv->u -= mwv->rank_sum[0]; - mwv->w = mwv->rank_sum[0]; + mwv->w = mwv->rank_sum[1]; if ( mwv->u > mwv->n[0] * mwv->n[1] / 2.0) { mwv->u = mwv->n[0] * mwv->n[1] - mwv->u; - mwv->w = mwv->rank_sum[1]; + mwv->w = mwv->rank_sum[0]; } mwv->z = mwv->u - mwv->n[0] * mwv->n[1] / 2.0; n = mwv->n[0] + mwv->n[1]; -- 2.30.2