From 9899da7143965f1dfe49c4f3ebc317297fef7ce2 Mon Sep 17 00:00:00 2001
From: Arkadiusz Kondas <arkadiusz.kondas@gmail.com>
Date: Thu, 7 Apr 2016 23:08:04 +0200
Subject: [PATCH] remove count from test condition

---
 composer.json                 | 2 +-
 src/Phpml/Metric/Distance.php | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/composer.json b/composer.json
index 66083b2..d3569d0 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
     "name": "php-ai/php-ml",
     "type": "library",
-    "description": "PHP Machine learning library",
+    "description": "PHP Machine Learning library",
     "license": "MIT",
     "keywords": ["machine learning","pattern recognition","computational learning theory","artificial intelligence"],
     "homepage": "https://github.com/php-ai/php-ml",
diff --git a/src/Phpml/Metric/Distance.php b/src/Phpml/Metric/Distance.php
index e0dce2d..1b92cef 100644
--- a/src/Phpml/Metric/Distance.php
+++ b/src/Phpml/Metric/Distance.php
@@ -23,8 +23,9 @@ class Distance
         }
 
         $distance = 0;
+        $count = count($a);
 
-        for ($i = 0; $i < count($a); ++$i) {
+        for ($i = 0; $i < $count; ++$i) {
             $distance += pow($a[$i] - $b[$i], 2);
         }