update room number field to be an integer

booking.helper.inc

@@ -1657,6 +1657,43 @@ function _booking_room_email_summary($node) {
 	return implode("\n", $rows);
 }
 
+/**
+ * Helper function to create the mean, median, mode or average of an array 
+ * @see http://www.phpsnips.com/45/Mean,-Median,-Mode,-Range-Of-An-Array
+ */
+function _booking_mmmr($array, $output = 'mean'){ 
+	if(!is_array($array)) { 
+		return FALSE; 
+	}
+	else { 
+		switch($output){ 
+			case 'mean': 
+				$count = count($array); 
+				$sum = array_sum($array); 
+				$total = $sum / $count; 
+				break; 
+			case 'median': 
+				rsort($array); 
+				$middle = round(count($array) / 2); 
+				$total = $array[$middle-1]; 
+				break; 
+			case 'mode': 
+				$v = array_count_values($array); 
+				arsort($v); 
+				foreach($v as $k => $v){$total = $k; break;} 
+				break; 
+			case 'range': 
+				sort($array); 
+				$sml = $array[0]; 
+				rsort($array); 
+				$lrg = $array[0]; 
+				$total = $lrg - $sml; 
+				break; 
+		} 
+		return $total; 
+	} 
+} 
+
 /**
 * @brief Generates a Universally Unique IDentifier, version 4.
 *