From 932b93572a21d09a24456802f05630a714c08f0c Mon Sep 17 00:00:00 2001
From: Ben Kurtovic <ben.kurtovic@gmail.com>
Date: Fri, 26 Sep 2014 20:09:05 -0500
Subject: [PATCH] Simplify function.

---
 earwigbot/wiki/copyvios/workers.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/earwigbot/wiki/copyvios/workers.py b/earwigbot/wiki/copyvios/workers.py
index e4ea165..99d2c86 100644
--- a/earwigbot/wiki/copyvios/workers.py
+++ b/earwigbot/wiki/copyvios/workers.py
@@ -268,7 +268,7 @@ class CopyvioWorkspace(object):
             # http://benkurtovic.com/static/article-delta_confidence_function.pdf
             ratio = delta / article
             if ratio <= 0.52763:
-                return log(1 / (1 - ratio))
+                return -log(1 - ratio)
             else:
                 return (-0.8939 * (ratio ** 2)) + (1.8948 * ratio) - 0.0009