style: main function

hw4/hw4_10.py

@@ -14,7 +14,7 @@ def read_data(filename):
             y.append(int(numbers[-1]))
     return x, y
 
-def format(features):
+def form(features):
     '''
         change to LIBSVM format
     '''
@@ -33,8 +33,9 @@ def error(gt, pred):
         err = (err+1) if gt[index]!=pred[index] else err
     return err/len(gt)
 
+if __name__ == '__main__':
     x, y = read_data(FILENAME)
-x = format(x)
+    x = form(x)
     prob = problem(y, x)
     lambda_powers = [-6, -4, -2, 0, 2]
 
@@ -52,6 +53,7 @@ for lambda_power in lambda_powers:
 
     ans, min_err = None, 1
     for i in results:
+        print(i['error'])
         if i['error'] <= min_err:
             min_err = i['error']
             ans = i