From 38a26d185f948322971c3600dd1d84356f3f6b9e Mon Sep 17 00:00:00 2001
From: Arkadiusz Kondas <arkadiusz.kondas@gmail.com>
Date: Tue, 6 Dec 2016 08:59:34 +0100
Subject: [PATCH] Secure index access and type safe comparision in statistic
 median

---
 src/Phpml/Math/Statistic/Mean.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Phpml/Math/Statistic/Mean.php b/src/Phpml/Math/Statistic/Mean.php
index 07c43fe..581a122 100644
--- a/src/Phpml/Math/Statistic/Mean.php
+++ b/src/Phpml/Math/Statistic/Mean.php
@@ -34,11 +34,11 @@ class Mean
         self::checkArrayLength($numbers);
 
         $count = count($numbers);
-        $middleIndex = floor($count / 2);
+        $middleIndex = (int)floor($count / 2);
         sort($numbers, SORT_NUMERIC);
         $median = $numbers[$middleIndex];
 
-        if (0 == $count % 2) {
+        if (0 === $count % 2) {
             $median = ($median + $numbers[$middleIndex - 1]) / 2;
         }