From 53c022725a0be4d076523997b052639e7dbc8ede Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Mon, 13 Apr 2015 17:18:25 +0100
Subject: [PATCH] Calculate bayes weight from 0.0 to 1.0 not from 0.5 to 1.0.

---
 src/libstat/classifiers/bayes.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/libstat/classifiers/bayes.c b/src/libstat/classifiers/bayes.c
index 823f5eff9..1e516ecbb 100644
--- a/src/libstat/classifiers/bayes.c
+++ b/src/libstat/classifiers/bayes.c
@@ -194,9 +194,7 @@ bayes_classify (struct classifier_ctx * ctx,
 			}
 			else {
 				/* Calculate ham probability correctly */
-				if (final_prob < 0.5) {
-					final_prob = 1. - final_prob;
-				}
+				final_prob = (final_prob - 0.5) * 2;
 				rspamd_snprintf (sumbuf, 32, "%.2f%%", final_prob * 100.);
 				cur = g_list_prepend (NULL, sumbuf);
 				rspamd_task_insert_result (task,
-- 
2.39.5