Compute cost for multiple variables

10 years ago · 3dc8897634
parent e38033c00d
commit 3dc8897634
1 changed files with 4 additions and 0 deletions
--- 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);

 % =========================================================================