fix wrong shape for theta in Ex.3.2.1

The provided data set has 4 columns (including theta_0), so theta must be of shape (4,)
2021-12-19 10:57:35 +01:00
1 changed files with 1 additions and 1 deletions
--- a/Exercise1/exercise1.ipynb
+++ b/Exercise1/exercise1.ipynb
@@ -1123,7 +1123,7 @@
    "num_iters = 400\n",
    "\n",
    "# init theta and run gradient descent\n",
-    "theta = np.zeros(3)\n",
+    "theta = np.zeros(4)\n",
    "theta, J_history = gradientDescentMulti(X, y, theta, alpha, num_iters)\n",
    "\n",
    "# Plot the convergence graph\n",