From 75f86a29bab36bc4ef144a03ea179be76fb2c3e5 Mon Sep 17 00:00:00 2001
From: Dennis Eichhorn <spl1nes.com@googlemail.com>
Date: Thu, 26 Oct 2017 18:54:46 +0200
Subject: [PATCH] Fix #128

---
 Math/Matrix/QRDecomposition.php | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Math/Matrix/QRDecomposition.php b/Math/Matrix/QRDecomposition.php
index fb735ad08..bdbb71e84 100644
--- a/Math/Matrix/QRDecomposition.php
+++ b/Math/Matrix/QRDecomposition.php
@@ -81,6 +81,8 @@ class QRDecomposition
 
     public function getH()
     {
+        $H = [[]];
+
         for ($i = 0; $i < $this->m; ++$i) {
 			for ($j = 0; $j < $this->n; ++$j) {
 				if ($i >= $j) {
@@ -99,6 +101,8 @@ class QRDecomposition
 
     public function getR()
     {
+        $R = [[]];
+
         for ($i = 0; $i < $this->n; ++$i) {
 			for ($j = 0; $j < $this->n; ++$j) {
 				if ($i < $j) {
@@ -119,10 +123,13 @@ class QRDecomposition
 
     public function getQ()
     {
+        $Q = [[]];
+
         for ($k = $this->n-1; $k >= 0; --$k) {
 			for ($i = 0; $i < $this->m; ++$i) {
 				$Q[$i][$k] = 0.0;
-			}
+            }
+            
 			$Q[$k][$k] = 1.0;
 			for ($j = $k; $j < $this->n; ++$j) {
 				if ($this->QR[$k][$k] != 0) {