move regularization norm out of loop

wikty · wikty · commit 306b12f7c1c0 · 2019-02-22T22:23:00.000+08:00
diff --git a/network2.py b/network2.py
@@ -312,7 +312,7 @@ def total_cost(self, data, lmbda, convert=False):
             a = self.feedforward(x)
             if convert: y = vectorized_result(y)
             cost += self.cost.fn(a, y)/len(data)
-            cost += 0.5*(lmbda/len(data))*sum(np.linalg.norm(w)**2 for w in self.weights) # '**' - to the power of.
+        cost += 0.5*(lmbda/len(data))*sum(np.linalg.norm(w)**2 for w in self.weights) # '**' - to the power of.
         return cost
 
     def save(self, filename):
