From 93e355d1c81f13a5054f3929841327880146a719 Mon Sep 17 00:00:00 2001
From: Robert Sesek <rsesek@bluestatic.org>
Date: Sat, 17 Feb 2007 18:52:00 +0000
Subject: [PATCH] We don't need the _standardDeviation() and _arrayAverage()
 functions anymore

---
 GraphLine.php | 35 -----------------------------------
 1 file changed, 35 deletions(-)

diff --git a/GraphLine.php b/GraphLine.php
index d171c00..bb0240f 100644
--- a/GraphLine.php
+++ b/GraphLine.php
@@ -278,41 +278,6 @@ class BSGraphLine extends BSGraph
 		return $pivot;
 	}
 	
-	// ###################################################################
-	/**
-	* Returns the unbiased statistical standard deviation of an array of
-	* values
-	*
-	* @param	array	Array of values
-	*
-	* @return	float	Standard deviation (unbiased)
-	*/
-	private function _standardDeviation($vals)
-	{
-		$average = $this->_arrayAverage($vals);
-		$popVariance = array();
-		
-		foreach ($vals AS $val)
-		{
-			$popVariance[] = pow($val - $average, 2);
-		}
-		
-		return sqrt($this->_arrayAverage($popVariance));
-	}
-	
-	// ###################################################################
-	/**
-	* Returns the stastical mean of an array of values
-	*
-	* @param	array	Array of values
-	*
-	* @return	float	Statistical mean
-	*/
-	private function _arrayAverage($vals)
-	{
-		return array_sum($vals) / count($vals);
-	}
-	
 	// ###################################################################
 	/**
 	* Sets the titles of the two axes
-- 
2.22.5