--------------------------------------------------------------------------- ValueError Traceback (most recent call last) Input In [27], in <cell line: 11>() 9 model.add(LSTM(units=32, input_shape=(sequence_length, 4))) 10 model.add(Dropout(0.2)) ---> 11 model.add(LSTM(units=32)) 12 model.add(Dense(units=1, activation='sigmoid')) 14 # 编译模型 File ~/anaconda3/lib/python3.9/site-packages/tensorflow/python/trackable/base.py:204, in no_automatic_dependency_tracking.<locals>._method_wrapper(self, *args, **kwargs) 202 self._self_setattr_tracking = False # pylint: disable=protected-access 203 try: --> 204 result = method(self, *args, **kwargs) 205 finally: 206 self._self_setattr_tracking = previous_value # pylint: disable=protected-access File ~/anaconda3/lib/python3.9/site-packages/keras/src/utils/traceback_utils.py:70, in filter_traceback.<locals>.error_handler(*args, **kwargs) 67 filtered_tb = _process_traceback_frames(e.__traceback__) 68 # To get the full stack trace, call: 69 # `tf.debugging.disable_traceback_filtering()` ---> 70 raise e.with_traceback(filtered_tb) from None 71 finally: 72 del filtered_tb File ~/anaconda3/lib/python3.9/site-packages/keras/src/engine/input_spec.py:235, in assert_input_compatibility(input_spec, inputs, layer_name) 233 ndim = shape.rank 234 if ndim != spec.ndim: --> 235 raise ValueError( 236 f'Input {input_index} of layer "{layer_name}" ' 237 "is incompatible with the layer: " 238 f"expected ndim={spec.ndim}, found ndim={ndim}. " 239 f"Full shape received: {tuple(shape)}" 240 ) 241 if spec.max_ndim is not None: 242 ndim = x.shape.rank ValueError: Input 0 of layer "lstm_8" is incompatible with the layer: expected ndim=3, found ndim=2. Full shape received: (None, 32)

这个错误提示说明你的 LSTM 层期望输入的张量维度为 3，但是实际的输入张量维度只有 2。具体来说，LSTM 层期望的输入张量维度应该为 (batch_size, sequence_length, input_dim)，其中 batch_size 表示输入的样本数目，sequence_length 表示每个样本的序列长度，input_dim 表示每个时刻输入的特征维度。因此，你需要检查一下你的输入数据是否满足这个要求，如果不满足，你需要对输入数据进行相应的变形。