[Bug fix] 401_CNN.py

1. fix typo
2. remove .squeeze for 1-D tensor

Author: keineahnung2345

tutorial-contents/401_CNN.py

@@ -65,7 +65,7 @@ def __init__(self):
                 out_channels=16,            # n_filters
                 kernel_size=5,              # filter size
                 stride=1,                   # filter movement/step
-                padding=2,                  # if want same width and length of this image after con2d, padding=(kernel_size-1)/2 if stride=1
+                padding=2,                  # if want same width and length of this image after Conv2d, padding=(kernel_size-1)/2 if stride=1
             ),                              # output shape (16, 28, 28)
             nn.ReLU(),                      # activation
             nn.MaxPool2d(kernel_size=2),    # choose max value in 2x2 area, output shape (16, 14, 14)
@@ -115,7 +115,7 @@ def plot_with_labels(lowDWeights, labels):
 
         if step % 50 == 0:
             test_output, last_layer = cnn(test_x)
-            pred_y = torch.max(test_output, 1)[1].data.squeeze().numpy()
+            pred_y = torch.max(test_output, 1)[1].data.numpy()
             accuracy = float((pred_y == test_y.data.numpy()).astype(int).sum()) / float(test_y.size(0))
             print('Epoch: ', epoch, '| train loss: %.4f' % loss.data.numpy(), '| test accuracy: %.2f' % accuracy)
             if HAS_SK:
@@ -129,6 +129,6 @@ def plot_with_labels(lowDWeights, labels):
 
 # print 10 predictions from test data
 test_output, _ = cnn(test_x[:10])
-pred_y = torch.max(test_output, 1)[1].data.numpy().squeeze()
+pred_y = torch.max(test_output, 1)[1].data.numpy()
 print(pred_y, 'prediction number')
 print(test_y[:10].numpy(), 'real number')