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CROSSTABS: Handle case where all cases in a crosstabulation are missing.
[pspp]
/
src
/
language
/
stats
/
mann-whitney.c
diff --git
a/src/language/stats/mann-whitney.c
b/src/language/stats/mann-whitney.c
index b837177b57a557580860a08d0069257d697f7cac..94cb1ceb60b42efef44b0d96e3206eeea30f2cf2 100644
(file)
--- 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->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;
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];
}
mwv->z = mwv->u - mwv->n[0] * mwv->n[1] / 2.0;
n = mwv->n[0] + mwv->n[1];