NameError：未定义名称“ compile_and_fit”

问题描述

history = compile_and_fit(lstm_model,wide_window)

IPython.display.clear_output()
val_performance['LSTM'] = lstm_model.evaluate(wide_window.val)
performance['LSTM'] = lstm_model.evaluate(wide_window.test,verbose=0)

当我运行此代码时，它给我一个错误，即“未定义compile_and_fit”，而在tensorflow的colab文档中可执行相同的代码。

解决方法

MAX_EPOCHS = 20

def compile_and_fit(model,window,patience=2):
  early_stopping = tf.keras.callbacks.EarlyStopping(monitor='val_loss',patience=patience,mode='min')

  model.compile(loss=tf.losses.MeanSquaredError(),optimizer=tf.optimizers.Adam(),metrics=[tf.metrics.MeanAbsoluteError()])

  history = model.fit(window.train,epochs=MAX_EPOCHS,validation_data=window.val,callbacks=[early_stopping])
  return history

来源：https://www.tensorflow.org/tutorials/structured_data/time_series#linear_model