From bc0e565a7779152de054509ee52d9a34d077ca9f Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <noreply@fakecake.org>
Date: Thu, 18 Jun 2015 18:53:52 +0300
Subject: [PATCH] apparently classifier may return NaN

---
 plugins/af_sort_bayes/init.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/plugins/af_sort_bayes/init.php b/plugins/af_sort_bayes/init.php
index 2293ea490..51867f08e 100644
--- a/plugins/af_sort_bayes/init.php
+++ b/plugins/af_sort_bayes/init.php
@@ -315,10 +315,10 @@ class Af_Sort_Bayes extends Plugin {
 					$prob_good = $result[$id_good];
 					$prob_bad = $result[$id_bad];
 
-					if ($prob_good > 0.90) {
+					if (!is_nan($prob_good) && $prob_good > 0.90) {
 						$dst_category = $id_good;
 						$article["score_modifier"] += $this->score_modifier;
-					} else if ($prob_bad > 0.90) {
+					} else if (!is_nan($prob_bad) && $prob_bad > 0.90) {
 						$dst_category = $id_bad;
 						$article["score_modifier"] -= $this->score_modifier;
 					}