我已经按照Tensorflow 读取数据指南,将我的应用程序的数据转换为TFRecords格式,并在输入流水线中使用TFRecordReader读取这些数据。
我现在正在阅读有关使用skflow/tf.learn构建简单回归器的指南,但我不知道如何使用这些工具来处理我的输入数据。
在以下代码中,当调用
错误:
我现在正在阅读有关使用skflow/tf.learn构建简单回归器的指南,但我不知道如何使用这些工具来处理我的输入数据。
在以下代码中,当调用
regressor.fit(..)
时,应用程序出错,显示ValueError: setting an array element with a sequence.
。错误:
Traceback (most recent call last):
File ".../tf.py", line 138, in <module>
run()
File ".../tf.py", line 86, in run
regressor.fit(x, labels)
File ".../site-packages/tensorflow/contrib/learn/python/learn/estimators/base.py", line 218, in fit
self.batch_size)
File ".../site-packages/tensorflow/contrib/learn/python/learn/io/data_feeder.py", line 99, in setup_train_data_feeder
return data_feeder_cls(X, y, n_classes, batch_size)
File ".../site-packages/tensorflow/contrib/learn/python/learn/io/data_feeder.py", line 191, in __init__
self.X = check_array(X, dtype=x_dtype)
File ".../site-packages/tensorflow/contrib/learn/python/learn/io/data_feeder.py", line 161, in check_array
array = np.array(array, dtype=dtype, order=None, copy=False)
ValueError: setting an array element with a sequence.
代码:
import tensorflow as tf
import tensorflow.contrib.learn as learn
def inputs():
with tf.name_scope('input'):
filename_queue = tf.train.string_input_producer([filename])
reader = tf.TFRecordReader()
_, serialized_example = reader.read(filename_queue)
features = tf.parse_single_example(serialized_example, feature_spec)
labels = features.pop('actual')
some_feature = features['some_feature']
features_batch, labels_batch = tf.train.shuffle_batch(
[some_feature, labels], batch_size=batch_size, capacity=capacity,
min_after_dequeue=min_after_dequeue)
return features_batch, labels_batch
def run():
with tf.Graph().as_default():
x, labels = inputs()
# regressor = learn.TensorFlowDNNRegressor(hidden_units=[10, 20, 10])
regressor = learn.TensorFlowLinearRegressor()
regressor.fit(x, labels)
...
看起来check_array
函数需要真正的数组,而不是张量。我能做些什么来调整我的数据,使其符合要求呢?