各种分箱算法

有监督：chi2、BestK、cart、最优woe/iv

无监督：等频、等距、聚类

https://www.jb51.net/article/174833.htm

https://www.jb51.net/article/174816.htm

https://www.jb51.net/article/174821.htm

https://pypi.org/project/woe/