From 3dc889763461b992740f63763248de5d915b1902 Mon Sep 17 00:00:00 2001
From: neingeist <neingeist@bl0rg.net>
Date: Thu, 2 Oct 2014 22:32:56 +0200
Subject: [PATCH] Compute cost for multiple variables

---
 ex1/computeCostMulti.m | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ex1/computeCostMulti.m b/ex1/computeCostMulti.m
index 5f59913..22e462b 100644
--- a/ex1/computeCostMulti.m
+++ b/ex1/computeCostMulti.m
@@ -13,7 +13,11 @@ J = 0;
 % Instructions: Compute the cost of a particular choice of theta
 %               You should set J to the cost.
 
+predictions = X * theta;
+errors = predictions - y;
+squared_errors = errors .^ 2;
 
+J = 1/(2*m) * sum(squared_errors);
 
 % =========================================================================