Merge pull request oreilly-japan#8 from TanUkkii007/fix-nameerror-in-train_convnet.py

Fix NameError

Author: koki0702

ch07/train_convnet.py

@@ -14,12 +14,14 @@
 #x_train, t_train = x_train[:5000], t_train[:5000]
 #x_test, t_test = x_test[:1000], t_test[:1000]
 
+max_epochs = 20
+
 network = SimpleConvNet(input_dim=(1,28,28), 
                         conv_param = {'filter_num': 30, 'filter_size': 5, 'pad': 0, 'stride': 1},
                         hidden_size=100, output_size=10, weight_init_std=0.01)
 
 trainer = Trainer(network, x_train, t_train, x_test, t_test,
-                  epochs=20, mini_batch_size=100,
+                  epochs=max_epochs, mini_batch_size=100,
                   optimizer='Adam', optimizer_param={'lr': 0.001},
                   evaluate_sample_num_per_epoch=1000)
 trainer.train()