摘要：
https://stackoverflow.com/questions/51091132/pandas-and-scikit-learn-keyerror-not-in-index The problem is the way you are trying to index the X using 阅读全文
摘要：
Xgboost调参： https://wuhuhu800.github.io/2018/02/28/XGboost_param_share/ https://blog.csdn.net/hx2017/article/details/78064362 pandas DataFrame中的空值处理： h 阅读全文