scikit-learn是构建在Numpy,Matplotlib等工具之上的一套完整的机器学习工具库。TensorFlow的接口封装仿照其进行了设计
样本划分问题
使用交叉验证集划分样本，代码： from sklearn.cross_validation import train_test_split
会出现⚠️：
1 DeprecationWarning: This module was deprecated in version 0.18 in favor of the model_selection module into which all the refactored classes and functions are moved. Also note that the interface of the new CV iterators are different from that of this module. This module will be removed in 0.20.
2 "This module will be removed in 0.20.", DeprecationWarning)
替换如下即可：
from sklearn.model_selection import train_test_split